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Error Code 43 is a Device Manager error that means the following:
Windows has stopped this device because it has reported problems. (Code 43)
1. When do you get the error?
2. Have you made any changes to the system?
3. What is the make and model of your mouse?
When you get this error with USB devices it’s because one of the drivers controlling the device notified the operating system that the device failed in some manner. This can be because of corruption in one of
the loaded drivers and the driver cache just needs to be flushed. Unplugging the computer sometimes doesn’t resolve the problem because the battery still holds power. To fix this, unplug all of your USB devices, then turn off the PC and take out the battery
(This is assuming that you’re on a laptop), let the PC set for about 5 minutes, then put the battery back in and restart the PC. Next, plug your USB devices back in one at a time and make sure that they work.
If this does not work or you’re on a desktop, follow this:
http://technet.microsoft.com/en-us/library/cc725873(v=ws.10).aspx
Also see:
http://support.microsoft.com/kb/310123
Refer to section: Code 43.
Hope this helps.
Thanks!