Safe mode and boot disk not working
Yesterday my computer refused to boot. It got as far as the bit where it asks me which operating system to load: "Windows XP" or "Windows XP Recovery Console". Whichever one I select, the screen goes blank a few seconds after and then the computer restarts.
I tried going into safe mode but even that doesn't work. It runs through a list of commands, reaches one called "drivers/mup.sys" and freezes for several seconds, then restarts.
Another time I got an error message that the drive wasn't mountable.
After all that, I tried to reboot my computer but the recovery disk got halfway through the procedure and then simply crashed. I downloaded the files for a boot disk from the internet yet when I tried to run it, I got an error message that a "non-system disk was inserted. Remove and strike a key when ready."
Anyone know why this might be happening? I haven't installed any new software or hardware recently nor changed any of the settings on my computer.
(This is from my second computer as it happens. I tried removing the hard drive from my first computer and putting it in this one as the slave but just got an error message that the drive couldn't be read.)