I am having a self assembled desktop since past 6 months and it was running with Windows 8 so far until yesterday when i upgraded the same to Windows 8.1 preview. Update process went fine without any problem but here is the problem, my input peripherals like Keyboard and Mouse stopped working at all.
So far i have tried everything but nothing seems to be working. Surprisingly the lights glow up on the keyword but none of the keys work. The same thing is with Mouse, no clicks work but the laser light is on. I have tried connecting them in all ports but yet the same result. Something please help. I have no idea what and were is wrong.
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