Since the start of the week I can't rename folders anymore. I can create and delete files and folders, and rename files, but renaming folders result in a "unspecified error". This happens regardless if the folder already existed or was recently created, and in both C: (my SSD) and E: (my HDD) drives.
The console command
ren still works, but renaming through any Explorer interface (Explorer window, Desktop, Open File dialog,...) fails in the same way.
It's not any antivirus (the only one I'm using is Windows Defender) and the problem persists with all user programs and their associated services stopped. I'm fairly sure I don't have any viruses either.
This is genuine, clean Windows 10 install. I found other people with similar problems, but all of them were drive-specific, which this is not.