Hi, I now have a self-build pc, all of it being new, including the Windows 7 Home Premium OS, The old pc still has its hard drive and the same OS. I now find, however, that I should have copied files from the old hard drive onto a flash drive in order to transfer them to my new pc.One solution would be to install the old hard drive into the new pc, which has plenty of room for it. I have no reason to think the old drive is infected with malware, and I would use it in the new pc for only an hour or two. What can I do to ensure that my new pc does not catch anything nasty off the old hard drive? Thanks, laurencewithau.