I just had a new video card and 256mb of ram added to my computer, and for the first night games that at first could not run were working fine on my computer. However, now my computer is suddenly really messed up. Here are some of the problems
Game related -
Whenever my games get to videos (not all but most, like the higher end ones, such as Silent Hill: Homecoming) the videos lag really bad until the game simply freezes, and I have to alt+f4 or it simply makes my computer crash. Since it was already working before, I have a feeling it's not hardware related but more virus related.
Computer related -
About 50% of the time that I turn on my computer, it never fully loads my desktop, and I am forced to restart it with the power button because it freezes permanently (I tried leaving it on for a full day, didn't unfreeze)
I have a feeling that I have a virus, and I have AVG Free, which says that some of my stuff is outdated. When I try to visit the site to update it, it says that connection to site was failed, even if I do it without using the link.
For some reason now, whenever I try to use internet explorer, which used to be the better of Mozilla and IE for me, it simply freezes, and I am forced to restart.
Last thing - I am considering doing the thing where my computer goes back to a certain date, but I am not sure if a) it can mess up my computer from having the video card in but not the drivers yet or something along those lines and b) if any games i have downloaded or installed will still be on the computer, because i have a download at about 95% and it would be a shame to lose it. I would completely reset my computer if not for the fact that I have some games that take a matter of days to install, such as WoW, and I don't have a key, but i do have a burnt cd from one of my family friends who is good with computers (he installed the video card and ram, said everything should work fine)
Thanks for any help, it would be greatly appreciated, I know thats a long read
p.s the video card is what i just got for xmas, a 1gb Radeon HD 4670