Remove Sentinal Ranger Client without the ranger servers
This may help anyone if they have to do what ive just had to do...
Ive brought a very old machine with the "Ranger Client" still installed back from retiredment, as Ranger is removed from the servers they is officially no way to uninstal the clients, the FAQ says format and reimage.
1. Delete the Ranger folder from c:\program files and delete the Rngrupdt directory from the root of the c:\.
2. Delete HKEY_LOCAL_MACHINE\SOFTWARE\Hyperion Security Software
3. Go to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon and find the value 'shell' and change the value from 'rgrshsub.exe' to 'explorer.exe'
4. Change 'Userinit' from 'rgrunit.exe' to 'userinit.exe'