Knowledge Base

You will need to delete keys and strings from Windows registry to remove Acronis SnapAPI drivers

Solution

• Windows 98/ME

  • Run regedit (Start -> Run -> regedit) and delete HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\VxD\snaphlp
  • Delete the following keys:
    
    • WINDOWS\system\iosubsys\snapman.vxd
    • WINDOWS\system\snaphlp.vxd
    • WINDOWS\system\SnapAPI.dll

• Windows NT 4.0

  • Delete snapman and snapman380 keys from HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services

• Windows 2000/XP/2003/Vista/2008 32/64 bit

  • Delete snapman and snapman380 keys from HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services
  • Delete snapman and snapman380 strings (only snapman or snapman380 string, do not touch other items) from:
    
    • HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E967-E325-11CE-BFC1-08002BE10318} -> UpperFilters

    

     

    

     

    • HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{71A27CDD-812A-11D0-BEC7-08002BE2092F} -> UpperFilters

    

     

    

More information

(!) If you are using an NT-based Windows operating system (Windows NT 4.0 and higher), do not delete the driver files (SnapAPI.dll, Snapman.sys) manually. This will make the system unbootable even with the "Last Known Good Configuration" option.