Details required :. Cancel Submit. Hi Smittychat, Thanks for your response. I Clicked on "Printer Server Properties" and clicked on Ports tab and I could see all the Ports, but unfortunately, when I try to delete any port, it won't let me. I get this message "The selected Port cannot be deleted. The request cannot be supported". Please advise. Select and click Delete The trick was to open the Command Prompt as administrator and start the Device Manager from the same command prompt.
Got it working. You need to do this. Then type: start devmgmt. Then go up to view and show hidden devices. It worked! Non present devices show up with the port number assigned right next to it. Thank you Brian for sharing your wisdom! I have over serial ports in use on my pc is there a way to uninstall several ports at 1 time? But then I booted in safe mode, and do this procedure. Thanks, this worked for me.
The driver initially can up as COM All my lower number COM ports were in use so I found these instruction to clear one of the ports:. Worked like a charm, thanks! I suspected those little bastards were hiding somewhere and now I know how to find them.
To those not getting it to work, you are probably not managing to set the environment variable properly step 2. Hint: You can also find the device manager in the hardware tab in the same dialog, unless you want to show off your command line ninja skills of course.
Thanks, worked a treat in Windows 7 no reboot was required when I replaced my motherboard. The com ports werent working and on checking the ports in use there were twice as many as there should be. Your tip allowed me to get rid of the old ones. For windows 7 32bit, etc, be sure you are in the Windows directory. Type: cdWindows once you are int he command prompt, then follow steps 2,4,5,6 above.
Hi Brian, got a quick question…what if you uninstall all the COMs and reboot but the COM ports come back and still show that they are in use when there is nothing being shown for the device s? Is this machine a member of a domain? If so, you might try logging on as local administrator account and re-follow the steps above. How do you do it there? Ok I figured it out never mind printers, removing to get comports etc..
The easiest way, if you have a My Computer icon on your desktop, is to right-click My Computer and go to Properties. You will notice if you go to the View menu in Device Manager and click on Show hidden devices , that nothing changes in your Ports list. Then open Device Manager from the cmd window by typing start devmgmt. Note, if Device Manager does not open when you start devmgmt.
When Device Manager opens, go to the view menu and click Show hidden devices same as Step 5 above. Scroll down to the Ports section and you will be able to see all the hidden COM ports. In this particular example, there are seven hidden COM ports showing on my main shack desktop computer. Of these seven, six are for devices I no longer use. I occasionally use the Keyspan port showing as COM6 so decided to keep it.
When finished, close Device Manager. The box will close. Note that any time you close the cmd window, you lose the context that permits Device Manager to display and manage COM ports for non-connected devices.
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