Issues with Intel Atom PC--With Avast 6.0.1203 Free

[bikemanAMD]

While using the PC suddently it goes Preparing to Standby Constantly, in additon running virus scans and Malwarebytes finds nothing, did a clean install using factory recovery dvd recently,  and it's still doing it. 

Seems like a virus, but nothing can detect anything, even tried MSE briefly on it, and said was all clean.    So now i'm stumped

Anything else i should try? 

The PC is wired to the Router via Cat5e Ethernet

Fully updated
Family was doing p2p stuff on it a while back

[Pondus]

if you suspect malware, then follow the sticky "Logs to assist in cleaning malware" in the virus and worms section, and attach an OTS log

[bikemanAMD]

Ok will do, if i can get the thing to stay outta standby mode long enough to get logs done, but i will give it a shot