You might have to manually disable Secure Boot first. But are you certain you actually need to switch over to full Legacy mode? The only reason you should need to do that is if you're trying to boot an OS environment that doesn't have any support for UEFI. For Windows or Windows-based tool environments, that would mean something older than Windows 8 or Windows PE 4.0 (although even Windows 7 and WinPE 3.1 can support UEFI with some effort). For Linux or a Linux-based tool environment, that would be a kernel that would be quite old by now, although some Linux kernels don't support Secure Boot even if they support UEFI.
If you describe the larger objective you're actually trying to accomplish, you might get answers that are ultimately more helpful than if you just ask how to accomplish something that you believe is necessary to achieve the larger objective.
jphughan
9 Legend
•
14K Posts
1
May 15th, 2019 13:00
You might have to manually disable Secure Boot first. But are you certain you actually need to switch over to full Legacy mode? The only reason you should need to do that is if you're trying to boot an OS environment that doesn't have any support for UEFI. For Windows or Windows-based tool environments, that would mean something older than Windows 8 or Windows PE 4.0 (although even Windows 7 and WinPE 3.1 can support UEFI with some effort). For Linux or a Linux-based tool environment, that would be a kernel that would be quite old by now, although some Linux kernels don't support Secure Boot even if they support UEFI.
If you describe the larger objective you're actually trying to accomplish, you might get answers that are ultimately more helpful than if you just ask how to accomplish something that you believe is necessary to achieve the larger objective.
raw23
1 Rookie
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6 Posts
0
May 15th, 2019 22:00
Thank I got it figured out. Needed to change it in boot options.