Windows 10: Struggling to install windows 11, when trying to switch from LEGACY -> EUFI BIOS mode, I...

Hello, Im trying to install windows 11 on my computer. I have enabled TPM, but i am struggling to enable secure boot. Ive noticed that in order to enable secure boot your bios needs to be in the EUFI mode, however mine is in the legacy mode. I have tried to switch this to EUFI mode, and then Save changes and restart, however, my computer does not boot, and instead just returns to the BIOS. I was wondering if any smart people out there would know if there was any way of fixing this, or is it an issue with my hardware not being compatible with the EUFI BIOS mode? My BIOS Version/date is stated a

:)

 

Windows 11 on Legacy BIOS

Hi, I’m Nicole, I’ll be happy to help you out today.

Legacy BIOS, also known as Basic Input/Output System, is a type of firmware used to initialize and manage the hardware components of a computer before the operating system is loaded. Windows 11, like previous versions of Windows, can be installed on computers using legacy BIOS. However, Windows 11 also supports the newer UEFI (Unified Extensible Firmware Interface) firmware, which offers more advanced features and better security than legacy BIOS.

If Windows 11 is installed or preinstalled in UEFI mode, then changing the BIOS to legacy will make Windows 11 unbootable.

You may need to install again Windows 11 via Legacy mode so you can continue on dual booting Windows 8.1 with 11.

Thank you.

 

Legacy v UEFI - Dell E6420 BIOS

Do you already have an Operating system installed in Legacy mode? If so switching to EUFI mode will stop the OS from booting. You will have to have a EUFI bootable drive to install an OS like Windows 10. Yes the benefits are that 2TB and bigger partitions
are supported as well as supporting fast boot. EUFI is faster and more efficient than Legacy. Hope that helps!

 

Windows 11 on Legacy BIOS

To install Windows 11 in a supported fashion it requires BIOS UEFI.

https://www.microsoft.com/en-us/windows/windows-11-specifications

https://aka.ms/GetPCHealthCheckApp

Unsupported Windows 11 installations may not benefit from the improvements in performance, reliability, and security.

It may be possible to dual boot Windows 8.1 and Windows 10.

See if the BIOS has options for Legacy and UEFI with and without CSM.

If there are UEFI options then switching from BIOS Legacy to BIOS UEFI may be an option.