Hi all, I just today took an old hard drive from a laptop that stopped working for reasons long forgotten, and plugged it into my desktop to see what old files I might have on it. I first tried to boot from the disk, but Windows XP crashed when booting, so I assumed it was just that it was the hardware change that was messing it up, and started Windows 7 from my main drive. After booting, microsoft security essentials kept giving popping up with messages about how it had cleaned a detected threat and required no action from me. I scanned the old drive with MSE and Malwarebytes, but MSE was the only program to detect the infection. I tried to clean the infection with MSE, but it seemed to freeze halfway though so I closed it with the task manager and wiped the old laptop drive. I scanned my other drives again with both Malwarebytes, MSE, and the Malwarebytes Anti-rootkit software and everything seems to be coming up clean, no more popups from MSE. Could my system be safe, or is it likely ramnit already got to the rest of my computer? Thanks in advance!