My keyboard when turn on my pc sometimes not working but if it is worked, and I don't turn off the pc I can use the keyboard with no problem.
When turn on my pc and keyboard not working, I will reset my pc till my keyboard working.
My other solution If I removed my battery,my keyboard worked everwhen.
Note : After the turn on If keyboard worked there is no problem till I turned of the PC
İt's very bad problem and I don't figure out what is the problem