Teclast X80H (FB6M) is a dual OS (Windows 8.1 + Android 4.4.4) tablet, to install Install the Samsung USB driver Restart the computer Select Device Manager > The X80H device > Update Driver Software. Select Browse my computer for driver software Select Let me pick from a list of device drivers on my computer Select ADB Interface / Android USB Devices from the list Select SAMSUNG Android ADB Interface http://forum.xda-developers.com/windows-8-rt/general/teclast-x80h-8-dual-os-chinese-tablet-t2996314/post59151938#post59151938 Can Teclast simply provide an adb driver link for customer download easily? ... sigh