Dear Windows Users,

After the Windows 11 26200.7840 Security Update (February 11th 2026), the virtual ports are not showing in windows, only the hardware ones.
At first I though it was related to Opusmodus update, but it´s a windows update BUG.

Here is the solution.

• Close all MIDI apps

• Open Windows Terminal as an Administrator (“run as administrator”)

• Type "net stop midisrv"

• After that completes, type "net start midisrv"

• Start up the app you want to use with MIDI
  

Here is a video:

Best, Julio

Hi Julio, Thanks for the information. Lately I've been working on my Mac and hadn't noticed that my MIDI ports on my PC were no longer working with Loopmidi. Its window displayed correctly with the MIDI ports, but they had disappeared from the system. And indeed, my latest Windows 11 update caused me some problems, including being without internet access for a few hours before I found a solution. Anyway, the two commands net stop midisrv and net start midisrv in the terminal solved the problem. So, a big thank you.

Best regards,

Didier