Hi, I've been having serious issues with my computer. I've recently downloaded Microsoft Security Essentials which found several exploits, a few trojan/trojan downloaders, and even a malicious program. (Power Regulator or something like that) I've quarantined all that, and thought it would be fine. However, my computer keeps freezing. 90% of the time it's after it's been left idle for 10 minutes or longer. Rarely, but on occasions it will freeze while in use. I'm also getting a double beep on start up. I also ran a diagnostic tool I found, and it says that I need to check the cord to my C:/ drive. However, Chkdsk said my C:/ drive was fine. I'm really at a loss for what to do.