Circle Device


Quick Reference

Deleting Old Devices

Deleting Old Devices

Windows keeps a record of the old devices connected to your computer. This can become annoying with things like COM ports... especially if the programme you are using only works with COM ports 1 to 9 (yes this is still a problem even in 2019 :-( ).

The process is simple:

  • Start a command prompt as Administrator
  • Set devmgr_show_nonpresent_devices=1
  • Run device manager
  • Click View -> Show hidden devices
  • Delete the old ones to taste!

The same thing, with Pictures

Step 1 and 2

Step 3


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