I'm trying to sort out a friend's laptop, which is about 1 year old. Start up takes about 10 minutes (Windows logo all that time), and this started a few weeks ago. I ran a scan with Malware and found a few infected files, which I deleted, but that's made no difference. Even after start up the computer runs very slowly.
I've checked event viewer for the boot up log and found that btusb.sys could be a problem. It may have got corrupted. If so, how can I install a replacement file?
Any one got any other ideas as to what the problem could be?