Have a Gateway Laptop running XP Home. (Didnt have the recovery disc with it.)
On start up just shows a blank screen (black)
Took HDD out error checked it by attaching it to another PC. Put it back into laptop got blue screen and message Process_Initialization_Failed and error 0x000006B.
Put HDD into another laptop tried using recovery console copying from system restore etc. - NADA still would't work.
Then reinstalled XP Home with HDD in other laptop (Gateway machine asks for Gateway supplied recovery disc) worked OK. Put HDD back into laptop got blank screen again (not even blue screen)
Took known working HDD from other laptop put it into Gateway machine same result blank (black) screen.

Any/all suggestions gratefully received.