So sometimes, when I'm saving changes, this error pops up and it's annoying because I have to reset my PC before it lets me to change details again a few times, and then this happens again. (Btw sorry for my English).

Turns out I searched incorrectly in Process Explorer, I tried again and Voicemeeter appeared. I closed it and it let me change the tags. That was the problem. It is solved! Thank you all so much for your help.