BIOS Settings
BIOS Setting of Advanced > CSM Support > Disabled in combination with
Chipset > OS Selection > Windows 8.X will not be able to enter the system
Legacy OS (Windows 7 /8.X / 10) with CSM Support > Enabled and Chipset > Windows 7 will not be
able to enter the system
At present, J1900 BIOS can only contain one kind of UEFI (currently 64bit), so CSM Disable or CSM
Enable (UEFI only) will not support 32bit.
Advanced > CSM Support Chipset > OS Selection
Save & Exit > Restore Factory Defaults