asked

I was installing Siemens Protool/Pro v6 SP3 on my Dell Latitude D820 laptop running Windows XP SP3 32bit OS. During the installation, I had to reboot several times. On the last reboot, my keyboard stopped working, preventing me from logging in, even in safe mode. An external USB keyboard also didn't work. The keyboard works fine in BIOS setup. What could be causing this issue and how can it be resolved?

April 6th, 2023

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