I had problems installing antivirus software so I spoke to someone at GuruAid and allowed him remote access to my computer. He said showed me loads of "viruses" I had and promised he could then install the antivirus then but not before; all for £80. I said no and stopped his remote access. I then rectified the problem myself by un-installing outdated software and installing the new. This is now running fine and has detected no issues with my computer. Moral of the story; "Do not trust, they will make you believe you have more issues with your PC then you really do".