@DrMr. Wrong. Almost all windows computers boot with "Sys32" and the "MBR" ( Stands for Master. Boot. Record. ). Around the late 70s-early 80s Instead of using Sys32, it would use Sys16 or Win16. Without Sys32/16 The only active and useful part of the computer would be the hard drive. If all else fails backup your hard drive and reinstall Windows then put the hard drive back in.