I bought a laptop from ebay it looks like the seller already wiped the hd and reinstalled windows 7. other than reinstalling windows 7 myself, how can I be sure that there are no viruses on this laptop that could steal my information? because reinstalling windows 7 takes a long time, I have to download all the right drivers and install those, it's going to be a huge pain. I am not sure if what I am looking for is a anti-spyware or virus scanner. what i am looking for is a program that i could install and it would tell me if anything suspicious is going on? do you know of anything like that? how can I be sure the laptop doesn't have viruses or weird programs that will steal my info?