Just spent an hour on the phone with a mate, trying to sort out his computer. It's about 5 years old, but one of my own builds, so it's still got some life in it yet.
Anyway, the problem is, he went to a guitar website, and F-Secure flagged that it had picked up a virus but could not disinfect it. His computer then rebooted of it's own accord, and he was faced with the red screen below, which claimed there is a boot virus on the machine (sorry, these are mobile phone images). We eventually decided that the only way forward was to click C to continue to boot into Windows, and do a full virus scan, which he did. F-Secure found one item of 'malware', which was actually a program I had installed when I built the machine, and had been behaving fine up to now, this being PowerDVD, albeit, a slightly warm version.
FS claimed that it couldn't disinfect the malware, and recommended that the file be deleted, which, as it was only an installation file, he did. He then switched off System Restore, to clear out the files there, in case it had hung on, and rebooted. The red screen below appeared again.
He continued to boot into Windows, but then, when clicking on an Excel file he is trying to move to a USB stick, he got the BSOD, also pictured below.
I have never seen the red screen before, but Googled, and found that it could be disabled in BIOS, so we tried that, and Windows booted fully, but then went into the BSOD again, when he tried to access the Excel file.
I'm now lost as to what to suggest, and it started turning into the blind leading the blind. Anyone got any ideas on this? I'm concerned that the red screen still appears (when enabled), even though the malware F-Secure found has been removed.