BIOS Problem CSM

[Sokoban]

Hi !

I have problem to install a new Windows in my ASUS T200.

I have USB with Windows 10 install, (works with other PC) and start the PC in BIOS (UEFI Firmware Settings)

System Mode is USER, Secure Boot Not Active and Secure Boot is disabled.

After a restart the PC I cannot see in BIOS either Fastboot and CSM option.

and then I start the PC with USB to install Windows, the PC wont start the old Windows.

What can I do to solved the problem?

Sokoban

[Sokoban]

Can Rufus USB Boot solve the problem ? Rufus is UEFI compatible...

[janner43]

Have you seen this post from one of our Windows experts...?

I know a sure fire way to make a multi boot USB thumb drive but it will take some work, it can be done on your T100.See this link for the tools. Easy2Boot

[Steve2926]

Some T200 have a 32-bit UEFI BIOS (even though the CPU may be 64-bit).
If yours came with Win32 then you need to use 32-bit Windows 10.
UEFI 32 will boot from the \EFI\BOOT\BOOTIA32.EFI file.
UEFI 64 will boot from the \EFI\BOOT\BOOTX64.EFI file.
So your USB needs the correct boot file that matches the type of UEFI BIOS that it has.