Windows 10: Can't Boot in UEFI, boot menu shows no entries when Legacy is disabled

Need help Can't flash windows when Legacy is disabledMy ultimate aim is to get the hard disk formatted GPT rather than MBR and boot accordingly.The laptop boots from USB as long as "Legacy Support" is enabled in BIOS. When I change this to disabled the laptop won't boot from USB and reports the hard disk error 3F0 Note: When "Legacy Support" is disabled in BIOS, the F9 boot screen shows no entriesI tried Rufus with GPT partition and windows media creation tool as well. My question is how can I get the laptop to boot in GPT mode from USB to allow me to install windows with GPT partition

:)

 

Can't disable UEFI boot on HP 250 G3

I got it, I was not accustomed to UEFI (because on HP 4540s I disabled it) and I automatically thought that if I boot from the first menu it will boot in UEFI mode, but I have to go to second menu "Boot From EFI File" to get a list of EFI boot options:



I installed Ubuntu Mate and Windows 8.1 from the first menu (the picture) and they both installed in BIOS mode. Quite simple really.

 

Can't disable UEFI boot on HP 250 G3

He is talking about completely disabling the UEFI boot path, you can not do that on a UEFI BIOS.

Enabling CSM just adds the legacy boot path, it does not disable the UEFI path. He is not talking about just enabling the legacy path and installing Windows in BIOS mode. He wants to completely disable the UEFI boot path from within the BIOS, you can not do that. Even if Windows and Linux is installed using the legacy path, the UEFI path will still be active.

 

Can't disable UEFI boot on HP 250 G3

There is literally not something UEFI allows. If those options do exist they likely just disable all the boot options under the UEFI boot section, but you can't entirely disable UEFI booting.

If you really must, just disable every option under the UEFI section in the BIOS.