think my restore partition got corrupted also, I have a XPS400, keeps rebooting to the screen that gives you options to start normal, safe, or last good.....
tried them all one of the options takes me to the blue screen Driver_irql_not_less_or_equal, another screen says "Windows\system32\config\system" is corupted. and all other options just reboots and sends me back to this.
Tried the Restore to factory several times using CTRL & F11 and it says in the end that it has restored sucessfully but has not rebooted any differently.
Does anyone have any simple fixes for this, I have not added any new hardware to this computer in months and has never had problems before, so I am thinking it is unlikely to be hardware or drivers?