After an eternity of a blank screen windows won't boot - was fine 1 hour ago - up pops "Windows failed to load as windows\system32\config\system is missing or corrupt boot from set up disc and press r to repair" - or words to that effect.
Trouble is don't know how to use repair consol and if I continue with setup it says I haven't got a copy of windows on my hard drive. HELP HELP HELP!!!
Any ideas or assistance would be most gratefully received. Thanks in advance.