Not only is this bug not fixed, but it is not even mentioned in the known bug list of the latest 2 drivers.
This is now the only reason stopping me from upgrading my laptop to Windows 10.
Patiently waiting for Intel to formally acknowledge this issue and promise they will fix it...
I am sorry to hear the issue has not been fixed on driver 4300,
The issue you previously reported was forwarded to our engineering team. I recommend keep checking future driver releases.