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