Instruction:
1 Ensure the battery level is over 50%(In the WINPE Mode,charge current is only 500mA,so you should ensure the battery level before install system)
2 Format the U disk into NTFS,change U disk name to "WINPE"
3 Copy the Extracted file of WINPE folder to the NTFS U disk
4 Insert U disk to GPD WIN
5 Normal shutdown or forced shutdown by pressing the button for 5 seconds,press both DEL button and Power button until following interface appear.


6 Choose UEFL:XXXX,Partition 1 by direction key
7 It takes about 20 min to finish whole installation, and then GPD will auto reboot


8 After rebooting,you will enter the Factory Mode


Close this window ,double click to start CleanupTestTool


GPD will eliminate OOBE file and Power off
9 You should take care to select your language, the GPD react slowly,so you need to try several times to choose your language