Windows explorer extension is no longer working after Win 11 PRO update in 3.30 release

[ohrenkino]

You would have to check in Help>About if you have a standard or a portable installation.

Then see if the FAQs about the shell extension help you:

Installation & Backup

Right-click context menu is missing on Windows 11 Assuming you've already restarted explorer.exe via the right-click context menu in Task Manager (or have rebooted Windows), this is happening sometimes on Windows 11 for reasons which I still trying to find out. What might help in those cases and when the classic context menu is preferred, is to manually register the shell extension from a command prompt with admin rights: cd <path to Mp3tag installation> regsvr32 Mp3tagShell.dll