Almost brand new Asus Vivo book and the external keyboard stopped working. I emailed support and instructions were too confusing. I was told to reboot, wait for Asus Logo and hit F2. It never worked. Links for replacement drivers never worked. I called support. Was told to hit F2 before Asus Logo and install defaults, save &exit. Downloaded drivers ATKPackage_Win7_Win8_Z100025 and KBFilter_Win8_64_Z1005 and installed. Keyboard still dead. It works at logon to enter password but not once windows loads.