I have Windows 7 since Sept. 2010. My mouse and keyboard worked fine. 2 days ago it quit working. I plugged into a XP machine and it works fine. I just went out and bought a new mouse and keyboard and it doesn't work either. I get an Error 43 that the device isn't working properly. Checked with Dell and all my hardware is working according to their tests. Any help would be greatly appreciated!!
I've had the problem with my mouse not working & getting error code 43. A simple fix is to unplug & take out the computer battery (laptop). Wait a few seconds & put the battery back in. This is the only thing I have found that fixes the problem. Mouse will occasionally fail, but taking out & the battery & putting it back in gets the mouse working again. Good luck.
Check BIOS see if you can find an option for Legacy USB devices. If it's ON, turn it OFF. If it's OFF, turn it ON. See if it helps
This worked for me. I turned OFF the legacy support which were previously ON from the BIOS, booted normally, connected mouse - didn't work.
Then I turned ON the legacy support in the BIOS, booted normally, re-connected the mouse. Alhamdulillah it worked.