Hi and thank you for your help, sorry for the late respond My feeling was right there was a problem with the recovery disk and not the hardware. What I didn't know but I find out by accident was the shutdown was caused by my printer. Anyway I received the new disk and uploaded .everything seams fine now and I don't use the printer. again thank you for your help .Now I would like to try to fix my older computer (running on xp) so my kids can use it but I know I have to open a new thread