Okay, so this issue has been driving me insane and none of the common solutions have gotten me any closer to fixing it.
Whenever I try to use a keyboard with multimedia hotkeys (Volume up, mute, play, etc), it will usually work fine for a while, before stopping completely. Windows will usually, but not always, start listing the keyboard as an unknown USB device. Restarting the computer does nothing to fix it. Disabling and reinabling the USB drivers in device manager doesnt work, nor does uninstalling and reinstalling them. This problem also persist regardless of which USB port I plug the keyboard into.
When I use a normal usb keyboard that doesnt have the extra hotkeys, it works fine. Also, if I leave the desktop off for an extended period of time (an hour or so is the shortest so far) the other keyboard will start working again, only for the problem to repeat itself eventually.
My desktop is a custom build with a ASRock H61M/U3S3 motherboard. The BIOS is the most up to date version. I'm using Windows 7 Home Premium SP1 64 bit OS, which is also currently up to date.
If anymore info is needed please let me know and I will post it asap
Edit: I also forgot to mention that the keyboard that is giving me these problems works fine on all other computers in the house. It is only this one specifically having this issue with it.
Edited by Thisguy90, 08 December 2013 - 12:36 PM.