Windows 8.1 unsolicited restart

[lalitbhatt97]

For the past couple days my computer has been restarting everytime I try to put it to sleep. I have looked at the event viewer but was unable to find anything wrong, and have ample amounts of power from my psu. Please help asap 

[SuperJeRoT]

I had a similar problem with my old computer, it would just stop working after about 10 min then I restart it and it would then work for 5 and so on... Just to realise that it was dirty as hell inside! You probably keep your PC clean and this is probably not the isue but if not, just open the case and clean the dust off of heat sinks and fans.
But perhaps it is an software isue in which case I can't help you, maybe restore your software to an earlier state when it was working...

[legopc]

a little bit more info would be nice  

[UnknownEngineer]

This may be a far fetch but have you enabled the C states (I think they are C states) in the BIOS.