Resetting back to factory default setting, Lenovo ThinkPad T42 mouse didn’t running well and so it is with keyboard. Those who get this problem said he’s get to the system preparation tool 2.0 but he can’t click or select anything there. It also comes when turn the T42 on and go into safe mode, the keyboard is able to select safe mode and bring the machine go in there. But when the system goes on the safe mode, both of ThinkPad T42 mouse and keyboard didn’t work at all. And both of these devices work only if he goes into the IBM recovery menu.
As the “SysPrep 2.0″ appears, I suggest you are using the original recovery CDs to reload windows or booting from the F11 partition.
Because if you are using the Rescue and Recovery to reload Windows, you should never see the system preparation tool 2.0. To resolve the ThinkPad T42 mouse and keyboard that can’t work after factory reset you would simply start the process of reinstalling Windows again to recover the T42 OS.
For those who unfamiliar to Recover ThinkPad T42 OS better visit link here to get the guide for using Rescue and Recovery.