Clarification On "UEFI Boot Issues" Video

[ExL]

I watched the "UEFI Boot Issues, and some settings to check!" video (https://www.youtube.com/watch?v=cLFUZ6LtqiE) that Dolphin_Oracle posted, and noticed that my Lenovo C30 was setup similar to Dolphin's T530. His boot option was originally set to [Both], while my C30 was set to [Auto]. As advised in his video, I changed my boot to [UEFI Only]. I don't fully understand the ramifications of this change, but assumed that it might prevent some problems when I try to do the MX Linux install. Most important to me is to avoid doing anything that might corrupt the Windows boot record, and render my PC unbootable.

Changing the BIOS boot to [UEFI Only] seems to have changed how a Live USB boots up. In fact, I had some trouble with a Live USB stick that I created with RUFUS. I don't know if this had anything to do with the BIOS change, but I am wondering if I may have opened a new can of worms by changing to [UEFI Only].

My objective is simple... to be able to dual boot my original Windows 7 installation, along with a new MX Linux installation. The hard disk is GPT with an EFI System Partition. My question is, does Dolphin's [UEFI Only] recommendation apply to casual users like myself, or should I have left it set to [Auto]?

Thanks,
Ed

[fehlix]

My objective is simple... to be able to dual boot my original Windows 7 installation, along with a new MX Linux installation. The hard disk is GPT with an EFI System Partition. My question is, does Dolphin's [UEFI Only] recommendation apply to casual users like myself, or should I have left it set to [Auto]?

Auto might cause to boot the LiveUSB in BIOS/legacy mode. If your WInOS is booting in UEFI you better set to "UEFI only" boot mode to avoid any surprises.

[dolphin_oracle]

The boot menus on the live system do look different on a UEFI boot but it's safer/easier to go uefi-only if your windows install is already uefi and you want to dual boot.

The live boot can still be customized through the customer menus boot option. (The default IIRC)