Protected mode disk drivers fail

[Guest]

Heres a weird one. I had boot problems with my PC, so in a panic connected my HD to a friends PC to copy data off it.
This worked fine. I then put my HD back in my system, and now BOTH PCs have the same weird problem.Basically my machine will rarely boot up. It hangs just before changing to the windows desktop (still at the post logo black screen). I can alwasy boot into safe mode, and if i tick that box that disables 32bit protected mode drivers it boots fine, but in compatibility mode for the hard disk.I thought it must be a virus/driver prob, so did a major virus scan, then actually reinstalled the operating system in a new directory. No change. I also tried using standard generic drivers for the hard disk, and everything else I can think of. Surely it must be a hardware prob? but then why the same thing suddenly on my friends PC?
This is driving me mental, any help VASTLY appreciated.

 

[HamsterSlayer]

It seems like a very evil virus to me. I think that the only option is to format...

In your special case I'd suggest backing up using a LAN connection or something else...hehe...

 

[Guest]

Well i beat ya to it. I formatted and fdisked the drive then reinstalled - no change. I then did a LOW LEVEL format of the entire drive and then reinstalled - no change.
The low level format did die about 70% through but i think that was the power saving kicking in.
Ive tried removing the battery to let the CMOS die, could i have a BIOS virus? i flahsed the BIOS and STILL have the problem, even with only the one HD and a vid card on the board and everything else removed.
any ideas?

 

[Guest]

Maybe heating is a problem.