Starting a few days ago I can no longer boot up my PC (Windows XP). Almost immediately I get a screen saying Windows is unable to start, sorry for the inconvenience and gives me the option of restarting normally, trying to restart with the last successful configuration, or various types of safe mode. None works. I didn't do any hardware or software additions/deletions prior to this. I suspect it may be a hard drive problem. (A while back I had been hearing what I thought were either fan or hard drive spinning noises from the PC but these seem to have gone away (or were happenng less frequently).) Right before it fails, I get a blue screen with writing but this goes away too quickly to read. I tried filming it with a camcorder and looking at it on my TV. The small writing is too fuzzy to read but it does say "Unmountable Boot Volume." I did some scanning for this error and the recommendation is to try booting from the Windows XP CD (which I don't have) or else downloading the boot file onto floppy disks and booting from them. This is in case the problem is a corrupted boot.ini file. There are then some DOS commands to enter to check for the type of error. I tried this but before I could enter any commands, everything froze...I couldn't type anything. So, has anyone ever had anything like this? Does it seem like a hard drive failure?