So today I switched my computer on, and within about five minutes this box popped up calling itself a SystemDefragmenter. It told me my hard drive was corrupt, had ram memory failure and other shit. I checked google and stuff, and quickly realised it's a virus and followed the steps to remove it. I used malwarebytes, which scanned my c drive and my external hard drive and deleted them. I rebooted my computer, but now EVERYTHING has gone. About 300GB of stuff on my e drive and loads of stuff from my c drive. Yet when I go into bitorrent, for example, all my downloads are still there; just the folder location isn't. During the scan, all my contents seemed as normal, but now apparently my e drive is totally empty?! Can anyone help me out please?