Shutting Down at random

Windows 7 Home, Compaq Presario CQ61
Ok, one night I was browsing when all of a sudden my laptop shut down.
I tried to bring it back up, but it would still do it.
Once I got an overheating warning as an excuse as to why it did, but it might not have been. So I bring it up in Safe Mode, and run Malware Bytes, and it caught two bits of malware, that it put in quarantine. One of them was a fake svchost.exe. Before I got to delete them, it shut down again. And did so a few times afterward in subsequent scans. Bitdefender won't come up in Safe mode neither. Anyway, every time I've tried to log in normally, it goes black after I input my password and reports a blue screen. Here's my hijackthis log:

Logfile of Trend Micro HijackThis v2.0.4


Please help, I just want everything back to normal!
~thanks
David