Has he been carrying it arround on one of those lap-top bags much? those tend to waste a laptop because you bang it more than you think that way.
And has he been having speekers withing 3 feets of the laptop? that can cause magnetising when the speakers create sound.
anyway, take a look under it and tell us the mark of the laptop (apart from that it's a hewlet packard).
also, my unprofessional diagnosis: Motherboard rust/aging or magnetising. Either one of those or a broken power supply (the one inside the lappy, not the power-wire). Contact a local computer hardware dealer and ask if they can backup the content of the harddrive.
always keep backups of important files (not just on a seperate harddrive, also have copies on artifacts like flash-drivers, external harddrives or cd/re-writables).