What motherboard do you have? I had this problem with my latest board because it only had USB3.0 ports on the board. And without 3.0 drivers there wasn't much I could do. I did have some 2.0 ports on my case. When I remembered this I plugged those in, and got my keyboard/mouse working on those. So if this sounds similar, get some 2.0 ports going and use those.
well the thing is pc worked just fine a month ago it would install drivers and all but all of sudden it is unable to search for drivers and it wont find the driver for keyboard so i was thinking to do few things in safe mode if it was possible to go there with out keyboard
it works like 50 50 when it comes to searching for drivers and donno why