To YuRon: А Ты ВНИМАТЕЛЬНО читал то,

For older products Downgrading to Personal Computer Diagnostics, version 10.39A (SP12906), results in Setup being included and selectable from the startup menu. The diskette of this softpaq can be used to update PC Diagnostics on the Diagnostics Partition or to restore it if the Diagnostics Partition has been destroyed. PC Diagnostics can be run by pressing F10 during power-up or reboot when prompted in the lower right corner of the screen on some models or when the cursor jumps to the upper right corner of the screen on other models. It can also be run directly from this diskette.