Is the device manager recognizing the hardware at all?
I have had problems with xp recognizing my mouse after its been disconnected. I know this sounds strange, but I left it plugged into the pc and rebooted a couple of times and it finally works. Glitch maybe?
My Dell keyboard works during boot and login to windowsxp.
once windowsxp loads, keyboard not working.
It is connected correctly to the computer.
I've already deleted keyboard from Device Manager and rebooted.
I've tried using another keyboard.
I've already tried a new USB wireless keyboard.
I've already deleted c:\windows\system32\drivers\i8042prt.sys.
I've already run XoftSpySE and RegCure.
What else can i do??

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