My computer using windows 7 64 (professional i think) recently auto shutdown to apply an update. While this was happening the computer accidentally was switched off. When i restarted everything seemed fine until i got past the 'starting windows' screen with the flag (straight after the bios screen). It blue screened and gave a STOP error. I have tried so far - using new ram - re seating the ram and hard drive - doing a sfc /scannow, which raises an error saying you cannot scan when a restart is scheduled, have also tried this with windir ect - doing a system restore for all possible dates, gives the error saying the memory cannot be read - chkdsk - trying to access and delete the .xml files - booting in safe mode (still blue screens) - restoring bios settings in the menu I am currently without my physical copy of win7 or any similar disks. Is there anything i am able to do about fixing this. If a complete hard drive wipe is required, there are files i would like to salvage beforehand, if this is possible. I have access to a mac laptop and external hard drives.