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Can't uninstall SGN 8 from Windows 10

On boot the machine says "SafeGuard Authentication Service is not running, no further action possible!

On attempt to repair or uninstall it says "The Sophos SafeGuard Local Cache is Corrupt" ..... "Error: 25300"

I have excluded the LocalCache from AV, and I ran the Disable_LCIntegrityAndBackup script, following https://community.sophos.com/kb/en-us/112147, but still can't get past the 25300.

Can't make any changes to the software whether it's adding/removing or repairing.

The workstation isn't currently encrypted. It started this on the first boot after install.



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  • They looked pretty general so I copied the registry entries that defined all of the SGN services to the bad workstation. It would boot and apply group policies then instead of going to the login it SafeGuard WatchDog would shut the computer down. I removed the service definitions in Safe Mode and am back where I started. 

    Can't uninstall or modify or use.

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