Fixing Keyboard Functionality on MacBook Air after Upgrading to Windows 10.

Full title: "Fixing Function Key Support (pageup, pagedown, home, end, print screen, delete, etc.) on MacBook Air running Boot Camp, after Upgrading to Windows 10.

I upgraded my MacBook Air from Windows 8.1 to Windows 10. Everything seemed good. A little *too* good. Even the trackpad seemed to work. Then I realised there was one terrible terrible problem. The 'fn' key had stopped working. That handy dandy little sucker that unlocks the power of Page Up, Page Down and so on -- was now just a useless obsolete chunk of good for nothing.

I soon worked out the solution, and since I don't see it documented elsewhere on the inkernets, I'd better publish the deets myself.

  1. Download the latest Bootcamp files, from here: Boot Camp Support Software 5.1.5640
  2. Unzip the file
  3. In the resulting folder: "\BootCamp5.1.5640\BootCamp\Drivers\Apple", find "AppleKeyboardInstaller64.exe".
  4. Install that.
  5. Reboot.
  6. Use Page Up, Page Down and so on, all day long.

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