Remove unused com ports windows 10 Windows Update will update all drivers it can anyway. With the help of the Windows Firewall and the Windows Command Prompt, you can easily close ports on Windows 10 and help to keep your system secure. (thank you again, Mike!), I was able to solve a strange COM port on my machine which I had with mbed serial ports. Everytime I remove and reconnect the device, a new COM port gets created. Nov 25, 2020 · Very often when using a USB to RS232 device for hardware troubleshooting, a virtual com port number will be generated. However, it wouldn’t be Windows if that would work flawlessly under all circumstances. Click “View” in the menu and select “Show hidden devices”. )Type exit at the command prompt. I've switched my printers over to TCP/IP ports and would like to remove the left over WSD ports. I'm very new to python and I haven't gotten very far with my code but below is what I have so far import serial. list_ports as port_list ports = list (port_list. Learn how to completely uninstall printer drivers and printer ports from Windows. de/misc_tools_e. Be careful not to delete com ports that are working properly. Aug 4, 2015 · Thanks to a tip from Mike S. How to successfully disabled the port e. Oct 24, 2024 · Learn how to secure your Windows 10 by closing unnecessary ports. Unfortunately trying to do so from the Printer Preferences Ports tab causes Explorer to crash. Thus, if your device was on COM 17, you’d have to change it to connect to it. Dec 29, 2020 · Open ports can pose a security risk and it’s a good practice to close some unused ports. Windows7 and WindowsXP. And You can manage printer ports in Windows by following these steps:1. Here is a Microsoft community post on the topic. 2 pyserial 3. I have tried using devcon findall =ports and used devcon remove "@some specific id The Remove-PrinterPort cmdlet removes the specified printer port from the specified computer. Every once in a while, testers need to go in and remove the assigned COM ports so they free up and start back at 1. If the device is removed and plugged to another USB port, Windows will install another set of drivers for the USB device, resulting in a new com port number assigned. In this tutorial we’ll walk you through the procedure of closing a TCP or UDP port in Windows 10, without using any third-party software. Ports act as communication channels between your device and the internet. To fix the condition to unmark unused ports that are in use, you have to modify the Windows Registry, which we do not recommend doing. The Problem: The test is searching for the device at a specific COM port, requiring the user to manually remove the "ghost" com ports. Show all Com Port Assignments Open a Command Prompt window, right click and select Run as Aug 12, 2025 · If you’re experiencing printing errors, connection issues, or simply want to clean up unused printer ports on your Windows 11 computer, removing unnecessary ports can help streamline your printer configuration. Apr 27, 2016 · It certainly happened to you that, when you connect a new USB device to your Windows PC, the operating system assigns the device a COM port with a high number because of the previous ones are in use: Windows indeed keeps the COM port reserved even if the device is not physically connected to the computer. The unused COM port is removed. I’ve got that down. How do I delete this port? Thanks Bruce May 19, 2021 · Is there a utility that would clean up the device drive storage folder and remove the unused devices? There are hundreds of them and cannot do it manually. One fundamental aspect of cybersecurity involves managing network ports—specifically closing unnecessary or vulnerable ports on Windows 10 to Mar 17, 2024 · How to Remove Hidden/Ghost Network Adapters in Windows When replacing a motherboard or a network card, during a P2V or cold migration of virtual machines between hypervisors, or when configuring multiple VLANs on a single NIC in Windows, you can come across a problem of hidden (ghost) network adapters. Windows probably doesn't register them as com ports, because looking at my device manager there is a group of HID devices separately listed, which probably include my keyboard and mouse. Step-by-step guide with tools. Right-click the USB virtual printer port you want to remove and select "Uninstall" from the context menu. Apr 2, 2023 · Device drivers do not go outdated (until Microsoft removes the APIs they use) and neither will this cause problems. Jun 24, 2025 · How can I identify unused ports on my network? You can use various tools and methods, such as network scanners like Nmap or built-in utilities in your operating system, to scan for inactive ports. Mar 10, 2015 · Hello OM:s I have tried to remove previous Virtual COM ports from CAT SDR and they no longer are shown on the device manager. In the popup window, DO NOT check “delete the driver software for this device” box. Type the following command "takeown /F \\server_name\printer_port_name" and press Enter. Therefore, knowing how to effectively close ports on Windows 10 is essential for safeguarding your personal and professional data. Nov 11, 2010 · Your keyboard/mouse should be autodetected pre-OS so you'll always be able to boot, even if you delete their com ports. ', None, 2) Environment Windows 10 Python 3. Follow these easy steps and tips. But I need to remove them by c/c++. I tried to delete the port but I get the message the resource is in use. let me know if its works Anonymous May 23, 2025, 11:38 PM Jun 25, 2020 · Here are instructions helps ECE 3520 students that are having issues with COM ports using the STK 500. How to delete block ports f. Or you can download it separately for free: Win7 SDK It will show you all registry entries related to registered component - then delete them manually with regedit. For some requirements I have to close the open port 80 and I am having problems deleting the unused virtual and TS ports. Jun 10, 2025 · A utility called Device Cleanup Tool from Uwe Sieber allows you to bulk-remove unused, non-present devices, including old COM ports. Jan 1, 2024 · This guide shows instructions on how to remove and change COM Port Assignments in Windows 7. exe. With the command: &quot;netstat -aon&quot; I get the list of all the active connections. Let us brief you on what ports are and why they can be dangerous. My problem is that the unused ports are left behind. Jun 27, 2022 · Finding & Removing Subconscious COM ports for Non-connected Devices in Windows XP (this procedure also works for Windows 7 & 10) Thank you to Jack, KF6T, Rick, N6XI, Ward, N0AX, and Steve, N2IC, as sources for the information on this page. Open a command prompt. 0 Running script with administrator Jan 25, 2015 · Removing or changing unused COM Ports from WindowsQuote from: WizBandit on January 25, 2015, 06:55:46 PM To get the Firmware updater to work try this to remove phantom COM PORTS: . Jul 4, 2025 · Open ports can serve as entry points for malware, unauthorized access, or data breaches. What is the process to close ports in Windows 10? Jul 24, 2023 · I'm doing a securisation of a PC with windows 10. Click the “Ports” tab and delete any unwanted ports from there. Before starting, shut down your radio and close any programs what may be using the virtual com ports, like SmartSDR CAT or other third-part applications. Or by using one of the two procedures below, you can eliminate old and unused COM ports to free up resources for devices you already have installed and wish to move to a lower port number or for devices you wish to install in the future. An example of this is, in older versions of TeraTerm, you could only connect to COM ports 16 and below. If it is occupied by an another process, it will show the process id of that process. Expand “Ports” to list all COM ports used. 0. While Windows 11 is a robust operating system equipped with many The reserved or "in use" port information is stored in the Windows Registry in a key named COM Name Arbiter that can be modified to remove the "in use" or reservation for COM ports that are not actually in use. Jun 5, 2012 · I need a script to remove all COM ports. Suppose the necessary COM port is already busy, and you want to try to free it. Over time, users may need to remove a printer from their Windows 10 or Windows 11 device due to various reasons such as device upgrades, driver conflicts, or simply no longer needing the printer. >Check for Windows update >Run a full antivirus scan. If you need to delete a TCP/IP Nov 17, 2020 · I implemented the SetupDiRemoveDevice() functionality. uwe-sieber. I looked under Device Manager to delete the unused COM ports but none of them show up. You can also execute a Command Prompt command to check COM port usage. Jan 19, 2024 · You can also use COM Name Arbiter to remove most of the risk associated with modifying the Registry. exe" It's part of Visual Studio installation. How to make only default ports open. These ports are often associated with hardware, such as modems, printers, and other peripherals. If you run a business and use multiple printers in your office, you need to be able to administer them quickly. What is a COM port? COM port (Communication port) is the name for the port serial interface that can be found in a common computer(IBM compatible). One significant aspect of maintaining your PC’s security is managing the network ports. Any useful hints to list used ports and using applications without 3rd-party applications? I realize you solved the issue, but if you ever need the know-how in how to remove printer ports that get stuck, there is a way to delete them using the registry, It is NOT supported by Microsoft, thus, don't blame me if you break something. Ideally, I would like to map every new paired device ( only on at once) to the If you are having trouble with your COM ports stacking up because they are in use, these brief steps below will help you clear them out. I am using Windows Vista with Service Pack 2 AppleTalk Printing Devices\Ports Exit Registry Editor and restart Windows NT. Feb 23, 2021 · Have a client that constantly needs COM1 port disabled and re-enabled in device manager. But the answers looked like a m Apr 19, 2018 · Removing unused COM ports from Windows 19 April 2018 Through Device Manager in Windows you can view which COM port has been assigned to which device. Mar 20, 2023 · Want to know How to delete Printer Ports in Windows 11 ?A printer’s specific drivers and ports are installed when it is connected to a PC. ) After you have deleted the unused and hidden COM ports, the list will show only those COM ports you use or may use in the future. The next enumeration goes to the next higher COM number instead of the expected number. Jan 9, 2015 · Expand the Ports (COM & LPT) section to see all the COM port numbers assigned in your PC. I've been searching for a way to batch delete these but haven't found a way that works yet. Whether you’re managing a business network or personal computer, safeguarding your system from unauthorized access is crucial. Also used by the custom software in the image are USB Barcode Scanners that use Serial COM ports. You can remove a printer port by specifying the port name, or you can use a printer object retrieved using Get-PrinterPort. Repeat the steps until all greyed out COM ports are re-moved. Therefore, it is recommended to close any listening network ports that your system isn’t using. Dec 5, 2024 · Open ports on your Windows PC are crucial for both security and functionality. From that i have picked up the port number which i wanted to close the connection and then i closed that connection using TCPView software. exe from Win SDK - look to Registry tab. This procedure will in most cases allow the user to un-hide hidden com ports in order to delete them eliminating possible com port conflicts. Beyond step-by-step instructions, I provide deeper context around Windows firewall concepts from a Linux perspective. Sep 14, 2020 · All I found the way to remove unused COM port is use device manager, right-click it and remove. msc Click on the 'view' menu item, then 'Show hidden devices' Open the "Universal Serial Bus Controllers" node Jul 25, 2023 · Windows 11 I have an unused printer port (old) that is no longer in use. Aug 2, 2023 · This post tells you how to completely remove old, uninstalled, or obsolete printers from the Add a Printer and Printers & Scanners pages. 7. How to Delete a Printer Port on Windows Here’s a step by step guide on deleting a printer port: Click on the “Start” button, then “Control Panel,” then “Hardware Jul 4, 2020 · In the Confirm Device Removal dialog box, click OK. Prnport by itself cannot remove all unused ports; the port name Mar 31, 2025 · Available COM ports: COM7: Standard Serial over Bluetooth link (COM7) COM3: Intel(R) Active Management Technology - SOL (COM3) COM6: Standard Serial over Bluetooth link (COM6) Error: could not open port 'COM20': FileNotFoundError(2, 'The system cannot find the file specified. msc “, then click “ OK “. Over along period of time, Oct 10, 2017 · How can I safely remove a network connection that is no longer visible in Control Panel\\All Control Panel Items\\Network Connections on Windows 10? I want to reuse the name of a previously existing Apr 11, 2012 · Whenever i do nmap on my system it shows most of the ports open. You can use Remove-PrinterPort in a Windows PowerShell remoting session. In addition, the leftover printer drivers, driver packages, and registry entries need to be removed. You may have noticed that every time a new FTDI-based board is plugged in, you get a new COM port. They reconnect roughly 20 times per day yielding 560 new COM ports a week. pressure Bob, Ryan, Andrew et al, to do a native OS/X version, then all the windows foibles, bugs, bloat, unreliability and general crappyness ceases to be an issue? Yay, I support the motion! Mar 7, 2019 · Get-WMIObject Win32_SerialPort | Select-Object DeviceID to see all the existing ports. When I try to reassign the com port on the the device in the USB port using device manager I find that com ports 2 through… Jun 22, 2018 · 1 The setup: An automated test station, built around a Windows 7 PC. exe that is a part of windows WDK. Can't use a specific port? Here's how to check which port is in use in Windows with simple commands and apps like currports and tcpview. Viruses and hackers use open ports in the Operating System to . This can include the serial port settings that may have been configured previously. But Windows can hold onto the ports. You can find this tool in the “System32” folder on Windows 10. there are locks on those keys. How to Close Ports on Windows 11 Windows 11, like its predecessors, provides users with a robust firewall system that helps to protect the system from unauthorized access and threats. Aug 3, 2020 · You shouldn't do this by hand (as you are attempting to do). Jan 2, 2024 · How to Uninstall COM Ports Installed by RealPort Drivers in Windows Items to Note before Starting: Ensure to document the IP address and COM port numbers already installed on the PC before uninstalling the COM ports installed by RealPort drivers. Type “ services. Run REGEDIT to edit the Windows Registry. You have to put : before port number to get the actual output Ex netstat -anp | find ":8080" We would like to show you a description here but the site won’t allow us. So, I’m looking for a way to remove all unused printer IP ports using prnport. They can be a physical connection, such as a USB port, or a virtual one, like a network port. This comprehensive guide will walk you through the reasons for deleting printer ports, the potential impacts, and a detailed step-by-step process on how to remove printer ports in Windows 11. Even when looking at hidden ports. 9. If you want to eliminate these unneeded printer ports, keep reading this post. html#dev > Run as Administrator > It will list all non-present (disconnected) devices Mar 16, 2023 · Learn how to delete USB, Unused, etc. Right click on one of the greyed out ports and select “Uninstall Mar 11, 2024 · In Windows, you can manually change the COM port number assigned to a device. It removes the device from the system, but Windows still thinks the associated COM port is &quot;in use&quot;. Each new device gets assigned the next COM port number, starting from COM1. The port and printer are removed from your computer. Feb 3, 2016 · How to clean up com ports in use by the system which are actually not in use. Removing an LPR Printer Destination In Registry Editor, delete the LPR printer from the following key: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Print\Monitors\ LPR Port\Ports Exit Registry Editor and restart Windows NT. Feb 10, 2017 · I was trying to delete com port using command line. This article will explore six quick and effective ways to delete printer ports on Windows, providing you with the necessary steps to clean up your printer settings efficiently. There are windows hooks looking for device changes. Click “OK” buton. Such ports are created when using USB-to-UART adapter. Open the Control Panel by searching for May 23, 2025 · >Temporarily turn off Bluetooth in Settings. In use, and not in use. It seems that I can now delete the ports from the Device Manager, but they still show up in Devices and Printers -> Print Server Properties -> Ports and do not allow me to re-configure them there They also still show up as in-use on Device Manager -> Ports -> Advanced, though now I have 256 COM ports!!! The new additions are not in-use. Dec 21, 2022 · Hi guys I use a lot of devices that use virtual COM ports, this results in me manually having to delete reserved COM ports every few weeks. Understanding Printer Ports Before delving into the methods, it’s vital to grasp what printer ports are and their significance. Mar 31, 2021 · We show you how to open or close a port in Windows 10 to increase compatibility with VPNs and other software or improve security. Right now I am using devcon. If the port to delete is assigned to the printer whose properties screen is currently being displayed, select the check box of another port, and then click [Apply]. Although aimed at Amateur Radio Operators, the tools used in this Jun 26, 2025 · How to Remove a Printer in Windows 10 & 11 Printers are essential peripherals for both home and office environments, facilitating the printing of documents, images, and other digital content. How to block a connection of port d. Jun 5, 2025 · After confirming that the port is not in use and can be safely deleted, change the port assignment, and then follow the procedure described below to delete the port. It has to be a cmd or PS Jan 6, 2016 · Delete unused network from Windows 10 Settings Panel Ask Question Asked 9 years, 10 months ago Modified 3 years, 11 months ago Jan 12, 2020 · In the digital age, with switching locations and offices frequently, it may be necessary to uninstall a specific printer driver or printer port under Windows 10. They are serial ports that enable devices to connect and communicate with the computer. 8. You will also learn several use cases where blocking port 80 is required, plus additional tips for Dec 1, 2022 · Remove ghost com port programmatically C# Asked 2 years, 11 months ago Modified 2 years, 11 months ago Viewed 382 times Jul 7, 2021 · Ports might be dangerous for your device. >In Device Manager, enable View → Show hidden devices and remove unused COM ports. Their testing application becomes VERY unhappy after 255. any ideas how to do this? (Vendor for the device is unresponsive, so we can’t do a proper fix) May 27, 2021 · I am tasked with creating a Windows image for use in Vehicle Emission Testing. comports ()) for p in ports: print ( Apr 24, 2012 · Hi Everybody! Our developers are working on a device that connects through bluetooth to a device connected to the serial port, but everytime they reconnect it creates 4 new COM ports. The UUT (Unit Under Test) are connected and disconnected often, creating many COM ports. Because the process requires you to enter the Device Manager, caution is advised. I would like to script this. ) When you finish troubleshooting, close Device Manager. The first time I connected it, it showed up at COM port# 3, and now I'm upto COM port# 28. You do not need administrator credentials to run Nov 24, 2019 · I have added a local printer port with address to a network address. 12. 5 com0com 3. Select the one that you are not going to use in future, right-click on it and choose Uninstall from the context-menu. Easily manage your connections by following these simple instructions. Replace "printer_port_name" with the name of the USB printer port that you want to delete Jan 11, 2012 · You can use "netstat" to check whether a port is available or not. How to Delete TCP/IP Printer Ports Via Command Line. Close() to do this. If you’re experiencing printing errors, connection issues, or simply want to clean up unused printer ports on your Windows 11 computer, removing unnecessary ports can help streamline your Dec 27, 2023 · In this comprehensive guide, tailored specifically for readers with Linux security experience, I will demonstrate multiple techniques to disable port 80 traffic under Windows 10. Follow our step-by-step guide to enhance your system's security effortlessly. Jul 13, 2025 · Incorrect port settings can lead to printer errors, device conflicts, or inability to print altogether. How to Close Ports on Windows 10: A Step-by-Step Security Guide In today’s digital age, cybersecurity is paramount. on my machine it is here: "C:\Program Files (x86)\Windows Kits\8. As expected, I found numerous instances of serial ports created by my USB to RS-232 adapter, but even when they are cleaned up, I still have 11 extra COM ports set as in use. If you are unable to Delete TCP/IP Printer Port from computer, the problem could be due a reference to the Printer still being available in the Registry. type set devmgr_show_nonpresent_devices=1 Open the device manager by typing devmgmt. You might also get new COM port assignment with adapters, etc. How to Delete A Printer Port On Windows 10||Worked||2021. Sometimes when working with virtual com ports on Windows it may be necessary to uninstall/remove or modify a hidden/ghosted device. Apr 2, 2024 · Information: There are numerous documents and articles on the Internet on how to remove faulty Print Drivers, Port Monitors and other Print Spooler related items from Windows by editing the Windows Registry. Q: Is there a way to delete all the COM ports in one swoop so that the devs do Jun 6, 2020 · I decided to do this video based on all the followup questions I got from folks trying to setup serial CAT control to their radio. Jul 16, 2024 · Okay, I will provide the steps to take ownership of the port and try deleting it again. Navigate Oct 8, 2011 · I work with a device that connects through COM port via Bluetooth. This comprehensive guide will walk you through the process of checking and changing printer ports in Windows 11 and Windows 10, empowering you to troubleshoot and manage your printers effectively. How do I delete it? Sometimes COM ports fail to connect, due to them being in use. Step #1 One thing is to see if hidden devices are taking up the ports: Click Start > All Programs > Accessories and then click Command Prompt. How to remove the respective rules 3. You can see that they are not assigned to anything yet when I try to delete them I get a “request not supported error” I have tried going in the registry and removing the printers but nothing works. Check which Ports are being used. A USB virtual printer port is simply a printer that is linked by software to a USB port. otherwise I could use $<PortName>. possible bad JUJU can happen. 0\bin\x64\oleview. Read the article and learn how to close ports on Windows 10. Clic Windows 10 刪除com port number (多餘的序列埠) 在windows系統開發常會用到 USB 轉 com port ， 日子久了 COM 號碼會越來越多， 有些程式會無法辨識到超過10或16的 com port 號碼 ， 這時就要刪掉前面沒用的COM號碼。 Aug 13, 2024 · Here are four quick and reliable methods for disabling specific or all the USB ports on your Windows 10 or 11 computer. Klicken Sie mit der rechten Maustaste auf die COM-Ports, die Sie bereinigen oder zurücksetzen möchten, und wählen Sie im Kontextmenü „Eigenschaften“ aus. If you are having difficulty mounting the Virtual COM Port Driver in Windows 10, this short tutorial may fix your problem in just 4 easy steps. exe manually (you can register COM class In this video, we will discuss how to open or close the TCP/UDP ports in Windows for better security and control over your computer. Show Hidden Devices? In the Windows Device Manager, there is an option to show hidden devices: Jan 4, 2024 · HOW TO: Remove Unused COM Ports for Re-assignment with Windows RealPort This guide shows instructions on how to remove and change COM Port Assignments in Windows 7. The COM port does not necessarily refer to physical ports, but also virtual. An open port can provide a pathway for malicious users to exploit your system. Eventually you can get into pretty high COM port numbers and that can be really Apr 8, 2013 · My main goal here is to remove all printers and their unused drivers from a Windows machine using a bat file. TLDR: Is it possible to clear com ports, specific com ports, unused com ports or ghost devices using a batch script? Thanks in advance! Uninstall the software that made the virtual com ports, if it's made properly it should clean up after itself and remove the com ports as well. The difference indicates the Open / busy ports. Launch Control Panel\All Control Panel Items\Devices and Printers. So, I tried to delete it by going in printer management but it says the required resource is i Feb 3, 2024 · What are ports in Windows 10 and why is it important to close them? Ports in Windows 10 are communication channels that allow data transfer between devices on a network. This image is for Machines to be hooked up to a MicroBench using High Speed PCIe to Serial Card connections; with FIFO 950. tools. I use this method myself, "Device Manager window open. Currently, I use a device cleanup tool but I'm trying to implement it in to a script that runs periodically. We have a computer that's used to test some devices. This quick step will save you time and aggravation later on if you need to reconnect that printer. Click "Device Manager" from the Control Panel Home section. Lately, it's been assigning Jan 15, 2012 · Original Title: Com Port in Use I have one device plugged into my Lenovo laptop running XP with service pack 3 and it is upto date. Replace "server_name" with the name of the server that the printer is connected to. Oct 24, 2018 · To successfully remove the port and avoid this error, you will need to stop and restart the Print Spooler service. Jun 11, 2011 · I'm looking for a way of programmatically removing virtual COM ports created by multiple bluetooth pairing processes. Removing Apr 13, 2024 · Understanding Printer Ports Printer ports are the connection points that allow your computer to communicate with your printer. You can use wildcard characters with Remove-PrinterPort. To change it, open the drop-down list and select the COM port number you want to set. How to quickly close ports using Command Prompt a. Now I want to interrupt (force close) the ports which are open in any way, including the ones opened outside cmd /PS. Aug 31, 2022 · Open ports in Windows 10 are often deemed dangerous because hackers can exploit them if the service or application the ports are associated with are unpatched or lack basic security protocols. Please consider The port is not necessarily opened inside PS. Thanks for watching the video. CHANGING/DELETING COM PORTS (WINDOWS) There may come a time when you need a device to be on a specific COM port. But, if you frequently switch between or use different printers, the old drivers and ports take up room and clog your system. Because the port is virtual, it is not a physical port, which can make the concept confusing for some users to grasp. Sep 30, 2015 · I have faced the same issue earlier, netstat -a -n windows command gave me the list of open ports with process ID. With NetStat, you can see open ports or ports that a specific host uses. Dec 31, 2011 · Does somebody knows how to close a TCP or UDP socket for a single connection via windows command line? Googling about this, I saw some people asking the same thing. If over the years you have connected many different devices which are assigned COM ports, this is not forgotten: Apr 6, 2023 · How can I delete unwanted TCP/IP printer ports? This tutorial shows you 2 simple ways to delete unused or inactive printer ports in Windows 11. Is there a way to remove hidden serial ports that won't delete/uninstall? I have tried just about everything including uninstalling the software that made them (virtual serial port emulator), editing the ComDB registry binary to all zeroes, and no matter what I do these stupid things remain. Everything works exactly as the development team want it to, with the exception of the USB Apr 11, 2025 · To remove unused COM ports in Windows 10, navigate to the Control Panel, access the printers folder, right-click the relevant printer, and select Properties. This guide will walk you through how to delete printer ports in Windows 11 safely and effectively. Otherwise you can uninstall them from the device manager, by right clicking them and selecting "uninstall device". In conclusion, closing ports on Windows 10 is a very simple process and can be done effectively if you know what to do. Dec 26, 2024 · If you are looking for ways to disable USB ports on your PC to limit or prevent users from using USB drives on your computer, then this article is here for you. Any help would be greatly appreciated. Per the articles always make backups of things before making changes. Also learn how to check which process or service is using the open port. It is important to close ports in Windows 10 to improve system security and avoid possible hacker or malware attacks. Click the "Ports (COM & LPT)" menu in the Device Manager window to reveal a list of USB ports currently being used by your computer. If you’re using Windows 11, you’ll want Nov 19, 2018 · According to your needs, you can configure Windows Firewall settings (block or open port in Windows 10/8/7l) and restore defaults if you are unsatisfied with the default Windows Firewall settings. Jan 21, 2025 · Discover how to view COM ports in Windows 10 with this step-by-step guide. If you’re deleting a network printer port, make note of the printer’s IP address, which will probably be the port name. Sometimes computers come with one or two physical COM ports (RS-232), continue reading "Resetting Windows COM Ports" Jul 26, 2023 · I have an old printer port that I want to delete I tried to delete it but i get a message that states: &quot;The requested resource in use&quot;. I am having USB printer installation problems, and it would be best is I start from the beginning. In Jul 1, 2015 · Easy way - oleview. You will be asked a confirmation about uninstalling the COM port. vbs without having to manually edit the script with each IP port. But that trick can help you with any other kind of serial port. This step-by-step tutorial will guide you through the process of removing unwanted printer drivers, ports, and Jun 14, 2022 · Test if Firewall is blocking a Port. Learn how to identify and disable unnecessary ports and services on your laptop, and improve your security and performance. Perfect for troubleshooting serial connections! Mar 6, 2025 · However, there may be situations where you find it necessary to delete unused or problematic printer ports. (you might have to The application provided will edit the registry to remove all COM port assignments on Windows at that point. Right click on one of the greyed out ports and select “Uninstall”. Jan 12, 2016 · I have trouble identifying the application using port 25 on my Windows 10 system. These steps assume you have already removed all printers that used the port you are removing. Does anyone have any ideas? How to Clear COM Ports in Windows 11 In the realm of computer communication, COM ports (short for communication ports) play a crucial role. . Use the netstat -anp | find "port number" command to find whether a port is occupied by an another process or not. Mar 7, 2013 · This mini tutorial will show you how you can find and uninstall all those extra COM ports you may have registered from years of microcontroller-hacking. Apr 10, 2024 · Learn how to easily check and manage COM ports in Windows 10 with our step-by-step guide. Open the Command Prompt as an administrator. I tried to delete reg Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\COM Name Arbiter and Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Ports but it's not work. Here's how to set them free. Printer Ports in Windows 11/10 using Settings, Device Manager, Command Prompt or Registry EDitor. > Download from the official site: https://www. Step #2 Type set devmgr_show_nonpresent_devices=1 in the Command Prompt and then press Enter. Hold down the Windows Key and press “ R ” to bring up the Windows Run dialog. The port started giving problems. The following procedure will allow ghosted/hidden devices to be The hidden serial ports don't seem the be the main cause of the issue. Here's how to delete Printer Ports in Windows. The registry can also be manually editted for those that feel secure in doing so. Learn how to change, reset, and free up COM ports in Windows using Device Manager, CMD, Process Explorer, and registry tweaks. … How do I see what COM ports are in use Windows 10? One of the simplest ways to check for open ports is to use NetStat.