Bootcamp touchpad drivers fail to install on Windows 8 RTM I've just upgraded my bootcamp partition from Windows 7 to Windows 8 RTM on a MacBook Air (2011 Core i7) and have been utterly and entirely unable to get the touchpad to work.

Things I've tried:


Uninstalling and re-installing the Bootcamp package
Removing and adding the specific two touchpad devices in Device Manager


The touchpad worked correctly under Windows 7 and works under OSX, so this appears to be a Bootcamp/Windows8 issue, rather than a hardware problem.

Any solutions?
Go to Device Manager and uninstall (and delete drivers) for the two
  Trackpad devices then rescan for hardware. After which, then go find
  your Boot Camp drivers, and don't run the full setup, but instead
  find the folder that specifically has the driver install packages in
  them and install the ones that are along the lines of "Apple
  Multitouch Trackpad." After this, go to your Boot Camp options to make
  sure that it now sees your Trackpad.   You should have full
  functionality restored after this.


Did get the answer from this forum post: How do I get my Macbook Pro trackpad working on Windows 8