File Share Encryption

 View Only

Can't deinstrument a decrypted disk - error -12220: Disk already managed

  • 1.  Can't deinstrument a decrypted disk - error -12220: Disk already managed

    Posted Feb 11, 2021 03:34 PM
    Been trying to do in-place upgrade from Win7 Pro to Win10 Pro on a machine with PGP WDE. Installed is 10.5.0 build 1180, same as on the other 2 machines that were successfully OS upgraded from 7-10 after decrypting the drives.    This is a standalone machine, there is no centralized control or PGP Server involved.

    This particular machine has been decrypted  and in-place upgrade has failed multiple times, took out any a/v and security software and next step is to take out the PGP software. In Place upgrade via Clean boot also fails.

    After decrypting bootguard is still in place, so let's remove it.

    C:\Program Files\PGP Corporation\PGP Desktop\WinPE>pgpwde --enum
    Total number of installed fixed/removable storage
    device (excluding floppy and CDROM): 1
    Managed disks:
    Disk Group 497eb3ac-8f35-455c-9e26-82f64a4872cf:
    Disk 0 has 4 online volumes:
    volume C:\ is on partition 2 with offset 401625
    volume D:\ APPS is on partition 3 with offset 656689068
    volume E:\ DATA is on partition 4 with offset 1404305973
    volume F:\ MISC is on partition 5 with offset 2625679728
    Request sent to Enumerate disks was successful

    As can be seen, decryption was previously successful (no highwater mark) and no more encryption in place.

    attempting to remove bootguard gives

    C:\Program Files\PGP Corporation\PGP Desktop\WinPE>pgpwde --uninstrument --disk 0
    Operation uninstrument disk failed:
    Error code -12220: Disk already managed

    Trying to uninstall PGP desktop says  : You can not uninstall Symantec Encryption Desktop when drives are still encrypted. Installation Terminated"

    Searching the community forums and lots of googling is not giving me much to go on.  Short of a fixmbr, not really clear on next steps to get around this error.

    suggestions?