In System Protection for the PC I'm working on (W7ProSP1) there's an unfamiliar item among the available drives. It has an icon resembling a folder (on its side); it's labelled SYSTEM and its protection is off. The other drives are what I'd expect: Windows (C (System) and HP_RECOVERY (D; of those, only the C drive has its protection enabled. Are these entries expected (particularly the SYSTEM one)? If so, are their protection settings reasonable? Restore points can be created successfully. I'm trying to find out why Acronis fails with a Shadow Copy error (incorrect parameter) when trying to back up to the cloud. The error seems to occur in Acronis's pre-backup phase. Any help appreciated - Lloyd.