Last night, after installing MS Visual Studio Service Pack 4, I restarted my system (as required). During Windows startup, the drive gave out a soft beep, attempted some reading, then spun down, then spun back up, beeped, and so on in an endless cycle. I started the computer in Safe Mode, same problem. Then I just started with a command prompt. The same problem would happen IF I tried to read from the Windows\System directory. The rest of the drive seemed fine, as I backed up most of it to my secondary HDD at this point. I figured something had become corrupted in the FAT or something, so I reformatted the drive - only it wouldn't reformat. The same problem occurred at around 12% of the format (it's an older IBM 1.6 GB drive). Same problem with ScanDisk (although Scandisk managed to say "run a surface scan" but it never gets far enough to do that). It seems that nothing is able to "repair" the drive, and at the same time nothing seems too wrong with it (since it was only a small portion that didn't work). Is something messed up on the inside of the drive? Could the Service Pack have somehow caused this problem? I would really like to salvage the drive but I'm not sure if I can. Your thoughts and advice are appreciated.