It's a bug in the drivers, there are three possible solutions.
1. Clean install the drivers and before you restart after installing the drivers, uncheck 'Automatically Check/Download Driver Updates'
2. In Radeon Settings navigate to Radeon Settings > Preferences > and uncheck Enable System Tray.
3. Navigate to Radeon Settings > Preferences > Additional Settings > Preferences > Restore Factory Defaults.
I did the finished the update three times, but i still get the notification. It show that i have 15.3 installed at the update screen.
At system i see 16.2.1
I did option 2, hopefully it works.
One more thing: BF3 is stuttering/weird lag badly sometimes playing with the HD6750. It was not in the HD4600.
No problem playing Need for speed.
I played with the video settings and no change.