I purchased a used Dell Dimension computer with Windows ME installed. I tried to load Windows 2000 and XP. This computer will not allow either of these OS's to load. I even tried to keep the FAT 32 partition and upgrade. When I do this, I get an error that the files on the hard drive are corrupted. I flashed the bios, tried a new hard drive, and even installed a RAID controller and get the same error every time. When I try to load OEM version of XP, I get the error that the hard drive is damaged.