Re: recent switch from Windows 7 64-bit here at work..
It's generally better to install using the Additional Drivers option because if you do that, when you later do updates that affect the kernel version, the drivers get updated automatically. Otherwise, you have to remove and reinstall the drivers with every kernel update. Just don't select the "post upgrade" version if that is offered. Those seem to fail most of the time.
Ubuntu 14.04, Mint 17; MS Win 8.1.
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