i'm having this very strange problem with my brothers laptop.
it's a dell latitude, 1 year old.
his laptop suddenly crashed and when the laptop booted it said: "no boot sector on internal hard drive"
i tried repairing the boot sector with the windows repair function, but the hard drive is just empty... nothing to repair.
then i tried to boot off a ubuntu live cd. which worked. and showed me an empty hard drive with the_maximum_capacity_of_the_drive_GB of unallocated space.
since that i reinstalled windows 7 two times, and stopped working after an hour or so. i installed ubuntu, which worked for several days. then i tried windows 7 again (clean install).
and then i kept working on the laptop for a couple of hours until the "crash" happened. all the programs stopped working suddenly. when i opened anything i was shown this error:
illegal operation attempted on a registry key that has been marked for deletion
after that everything is lost if i turn the computer off. and i'm back at an empty unformatted hard drive.
it's really weird. i changed the sata operation mode in the bios to different options before every installation of windows.
didn't try xp, because i don't have dell-xp cd's .
has anybody encountered anything similar to this? is the hard drive broken? i guess not because ubuntu works. and windows 7 also, but it just goes away suddenly...
here's a video (shot in portraitmode) of the event...