The following item may be logged in the event viewer
2003 Volume Shadow Copy Service information: The COM Server with CLSID {e4eb5095-f587-4159-a1d8-2710692fd243} and name SW_PROV cannot be started. [0x80070422]
It seems the uninstall does not always clear all required registry entries
regedit to: HKLM\system\currentcontrolset\services\vss\providers\
Check the GUID’s – one will be associated with shadowcraft, remove it. Mine proceeded without a reboot after that.