I'm not sure if this is a software or a hardware problem. I'll post to software if it's suggested I do so...
I have a Sony Vaio laptop VPCEE31FX. I'm on Win7 X64 and using Microsoft Security Essentials which is active and up-to-date.
Recently I tried to boot multiple times. It would come up to the first screen (VAIO) then turn to grey and go no further. I'd have to use the power button to shut off. I turned it off for approx two hours.
Tried again, same thing. So I booted with the Repair Disk that I built when I first got the machine. It booted, brought me to desktop and it ran fine.
I've booted normally (without the CD) a dozen times since. Only thing I've noticed is that my system clock is now about two hours slow. I'm assuming that correlates to the two hours I left the machine turned off. But what would this mean.....?
I ran Malwarebytes (full scan, 58 minutes); it found nothing.
Today I set the property to correlate my computer time with official time. It changed and is working fine now.
Any ideas what may have happened? Is there anything I should do now?
Edited by hamluis, 04 March 2013 - 11:23 AM.
Edited for readability - Hamluis.