MacBook Pro Keyboard Function Keys & Backlight Stopped Working

This is a repost of an older thread, however i am having the same exact problem and i know i am not the only one.
Origionally posted by FIDO2010 -
"Problem: The keyboard function keys (i.e. screen brightness, audio volume etc.) and backlight no longer work in Windows 7 (64-Bit) running Boot Camp 3.x. I also had the identical problem with Windows Vista (64-Bit) running Boot Camp 2.1.
Oddity: When I first installed Windows 7 and Boot Camp 3.x (same with Vista and Boot Camp 2.1), the keyboard and backlighting worked perfectly for about 3 Shut-Down/Re-Starts.
Points of Interest: I use a Logitech MX Revolution 2.4GHZ mouse and a Microsoft Blue Tooth Presenter Mouse 8000 with this machine. When I had this problem running Vista 64-Bit and Boot Camp 2.1, I assumed the problem was created by installing the drivers for these mice (suspecting that the mouse drivers over-wrote the Apple keyboard driver); however, I installed NO mouse drivers when I deleted the Vista 64 Boot Camp partician and created the "fresh" Windows 7 (64-bit) / Boot Camp 3.x partician.
I have tried the obvious of un-installing/re-installing Boot Camp, running the Boot Camp driver in repair mode, and manually replacing the keyboard driver itself. None of which have worked.
Solutions?"
Any insight will be greatly appreciated. this issue is driving me crazy. Must have installed windows a good 30-40 times in the past couple months. thank you

As you all are probably well aware, this exact problem has been asked on a countless number of discussion boards and each is answered with a different "solution." Quotation marks are necessary because the solutions suggested work for some users but don't work for others. So, in a way, I offer those who read this reply this same disclaimer. The following solution worked for me (for now!) but it may not work for you.
Just like those other users, my volume and brightness function keys on my Macbook refused to work after installing the latest Bootcamp updates and after restarting Windows 'x' amount of times. In addition, trackpad scrolling, which worked great after one of the updates, also did not respond.
Here's what I did to get them working again, and it's rather simple. Find the Bootcamp application in Windows. Mine was housed in Program Files but yours may located be somewhere differently. Right-click the application and select Open. In my case the screen went black and the resolution downgraded to 800x600 or lower when the images on the screen returned so keep this in mind if or when you attempt this. The screen is significantly cropped so you may have trouble navigating to the Control Panel to fix the resolution to your liking. Anyway, now my brightness and volume function keys and trackpad scrolling work properly.
I should mention one or two more bits of information before I sign off. To start, I cannot say if this trick continues working after restarting Windows. Also, I do not know if this process is something you have to perform everytime you run Windows. In any case, let the world know if this or any other solution fixes this stated problem for you.

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