Sudden Shutdown after start-up
This problem started about one or two days ago and is slightly different from other problems on the computer shutting down after start-up.
Basically, when I turn on the computer, everything seems to be running smoothly. I have a see-through case and I can see that all the fans are running. After my motherboard loading screen and the Windows loading screen run, I am taken to the Windows log-in page. I type my password and I see my desktop. Then, after one or two seconds of seeing my desktop, Windows takes me to a "Please wait..." screen while it saves my settings and then says that it is shutting down. However, I did not order a shutdown or configure anything in the computer which may instruct the computer to shut down automatically.
Oddly, sometimes my computer does not experience this problem. Other times, at random, my computer does this.
Could a virus do this?
My computer was custom made about two years ago, and I have not changed anything internally since then. My average CPU temperature as recorded in the BIOS is around 73°C. Here are the specs:
Pentium D 3.4 GHz
Asus P5WD2E Premium motherboard
1 GB of Crucial DDR2 800 MHz RAM
Western Digital 320 GB @ 16 MB/s HD
ATI X1600 512 MB RAM
Antec 500W PSU
5 fans (Stock CPU, PSU fan, 3 additional fans)
Thank you very much.