Rather than do a Windows restore, have you tried doing a factory restore?
When system powers on just hit F9 once before Windows starts to boot.
You should then get the F9 recovery system and then just follow the prompts to do the restore and the C: partition will be returned to the state it was in when you first powered on the system. Though note this does not effect the D: partition, which is reserved for storing your data and you'll have to delete anything you don't want kept on the system in that partition.
I actually tried this several times, but the system restore didn't work.
But, I found a way to solve it that I found on another site: went into the BIOS settings first (F2 on startup) and THEN chose F9 in startup settings: that worked alright.
Hope this will help others.
Thx for the reply.