How is the update failing?
What is the error message?
If you think your AMD APU needs an update why not get it right from the AMD driver page which is here:
http://support.amd.com/en-us/download

If you are seeing something like this:

That message is telling you that the driver update offered from Windows Update is an older or lesser version than the currently installed driver or has a lower compatibility rating than the installed driver. That means you probably don't want that update
and you should be glad the installation is failing.
It is generally not a good idea to accept hardware driver updates (network, audio, video) offered by Windows Update and if you ever see them it is best to hide them so you never see them again. Only get hardware driver updates from your hardware manufacturers
WWW site.
Just because Microsoft offers you a driver update does not mean you have an out of date or afflicted driver and it certainly doesn't mean you have to install the driver updates MS offers - it is generally best NOT to install hardware driver updates offered
by Microsoft.
Accepting hardware driver updates from Microsoft is one reason there are so many topics in the community that start with "Windows update broke my computer...".
One rule of thumb is "if it ain't broke don't fix it" so if you are not having a problem with video, audio or network don't accept or install those driver updates offered from Microsoft. If you are having a problem like that you should only get driver updates
from the hardware manufacturer.
If you see and can recognize those hardware driver updates offered you should right click and hide them:

Pretty soon you might have quite a few hidden hardware updates:

Windows has a way built in to not allow these kinds of updates and I'm not 100% sure it works as advertised but this is a safe adjustment that may prevent a whoops event in the future and how you might undo them if they happen:
Windows 7 has built in ways to disable driver updates from Windows Update that you can read about here:
https://support.microsoft.com/en-us/kb/2500967