System: Win 7 Ultimate x64 on an HP Pavilion DV6. My account is the only proper user account on the laptop and is an admin account. When trying to do a system restore, it came up with an error that the Volume Shadow Copy Service was not working, though that error code is irrelevant for the purposes of this question as I later managed to run system restore in safe mode from an old restore point... When trying to turn on VSS, I checked services.msc (which I ran as administrator) and VSS was off and was on manual. I tried clicking start, the following error came up: "Windows could not start the Volume Shadow Copy service on Local Computer. Error 5: Access is denied." I then changed it to automatic and tried again, same error. I have since tried everything I can possibly think of (including setting it back and forth between manual & auto while trying the below solutions) to get the service to start, to no avail. Solutions tried so far: - net start vss in elevated cmd - returns the same error (error 5 access is denied) - vssvc.exe in elevated cmd - same - changed permissions to full control for myself, admin group and NETWORK SERVICE (which I had to add) for System32 folder and for vssvc.exe but no change - changed permissions to full control for myself, admin group and NETWORK SERVICE (which I again had to add) for VSS in regedit (opened as admin) still nothing - even tried restarting explorer.exe from an elevated cmd and an elevated task manager and did the permissions again - still nothing. The only thing I haven't done yet is run an sfc scan, but tbh I doubt that'll fix anything. It also seems that VSS has been off for a while, as my last restore point was approx 3 months ago and I've installed things since. Any suggestions/ideas would be very much appreciated, as I'm completely out of ideas now! Thank you!