For this issue i really need an expirienced expert. I have HP Compaq dc7600 desktop machine with WinXP Pro sp3 installed on it.
Two weeks ago I get infected by a bunch of trojans, malwares that were circulating ( and still are ) through our corporate network. But those infections are old story because everything end up in disaster. At one point after system restart when I get to CTRL+ALT+DEL screen to logon into windows, my ps/2 keyboard and mouse become unresponsive. I plugged usb mouse and it started to work but usb keyboard still nothing. To make a story as shorter as possible, I run a Windows XP cd to try to repair windows. ( I need all data to stay intact, at least that one from Documents and Settings ).
I started a setup but when I get to a point where I need to use for the first time my keyboard for entering a Product Key it was still unresponsive.
I managed to recover data what i needed from recovery console, copied all Documents what I wanted to usb stick, but still I wonder if there is a way to fix the system. Actually what i want to know, is there any possibility to direct back booting sequence to boot into original Windows, not all the time entering the Setup?