regedit
• as administrator
• Hkey_Local_machine
• system
• current control set
• control
• class
• find the string:
4d36e967-e325-11ce-bfc1-08002be10318
and double click on it.
• Go to the right: upper filters and double click on it
• a screen opens on the left and value data should read: written like this:
PartMgr (so 2x a capital letter)