I know this question has been asked before but I can\'t seem to make them work now.
I have tried:
After none of above worked for me, I searched whole registry for
{C5994560-53D9-4125-87C9-F193FC689CB2}
(Value of "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\ Tortoise1Normal")
I found a key with name
"{C5994560-53D9-4125-87C9-F193FC689CB2} {0C6C4200-C589-11D0-999A-00C04FD655E1} 0xFFFF"
inside
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Shell Extensions\Cached
So I decided to delete all subkeys of registry key
"HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Shell Extensions\Cached"
and after I restarted explorer.exe all tortoise overlays started working for me