Computer shutdown, low RAM messages, virus?

October 30, 2010 at 18:58:31
Specs: Windows 7, 8 GB RAM
For the past couple of days, my computer was acting strangely. It's an HP pavilion p6412y, but I installed my own graphics card, (Nvidia GeForce 240) and power supply, (450 Watt)
It was slow, and especially slow in start up for the past few days. Today, it completely went berserk. Multiple windows popped up, saying things like, "Unable to locate disc..." and "Not enough RAM" (Despite the fact that I have 8 GB and was idling at my desktop)
Following that, multiple popup windows came up in Google Chrome. Fearing a virus attack, I ran a scan. Sure enough, it detected a couple of viruses and a trojan. I quarantined the threats, and ran a defrag program, like my computer prompted me to do. Then, it gave me multiple error messages. The windows 7 dock vanished, and the computer subsequently turned off. After a reboot, the computer seemed fine at first, but continued to bombard me with messages of, "Not enough RAM." It now shuts down after roughly 20 minutes of being on. I wanted to see if it was an operating system problem, so I tried booting up Ubuntu 10.4. I installed Ubuntu using Wubi, which runs Ubuntu through the Windows 7 C drive rather than a separate partition. However, it asked me to boot up Ubuntu using GRUB, because it wasn't able to locate Wubi on the screwed up windows side, It's prompting me for the Ubuntu partition, but it doesn't exist. So now, my only way to use a computer to try to figure this thing out is my netbook. I know, it's a wall of text post, but does anyone have any ideas?

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October 31, 2010 at 05:10:15
I am unclear, did you boot from the ubuntu cd OR did you insert the cd while windows 7 was running?


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