G750JX + Windows 7 = Kill Me Now

I won't be able to immediately answer questions, but I'll post all the information I can on my problem.

First, the fn+Up, Down, Left, and Right controls are only compatible with windows media player. Is that intentional?

Second, and on to the main issue: I got a 500GB SSD, a Samsung 840 series, and, due to a complete hatred of all things Windows 8, did away with my original hard drive (by which I mean it's in a box in my closet) and installed Windows 7 as my new primary drive, using the instructions here. All is well! Everything's installed and the computer seems totally okay with everything!

Except, no.

NVidia is throwing a hissy fit about how it can't install drivers because it can't create the UpdatusUser profile and I have no idea why that would be the case. I realize this has nothing to do with Asus, but this is utterly maddening. None of the fixes on the nvidia forums were of any use. Judging by the topics in this forum, a lot of you have walked in the valley of the shadow of OS downgrades, so I'm hoping someone here might have experienced this problem and have a fix.

Also if there IS a way to use the fn keys with winamp that would be awesome.

Source: http://rog.asus.com/forum/showthread.php?35399-G750JX-Windows-7-Kill-Me-Now&goto=newpost

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