About last month, my computer started acting all weird, then it just up and deleted Window's off of it completely. I had to send it back to the company to get rebuilt. But, my question is, is there a such thing as having too many antivirus and malware programs installed on your computer? I had Malwarebytes, HitmanPro, 360 Total Security, and the Window's Security that already came with it installed on it. Would having to many cause the computer or the programs to erase Window's on the hard-drive?