My Windows 10 PC would not go into restore or repair mode. So
I decided to reinstall the OS. I had a repair disc for Windows 10 and a Windows
10 system image. Neither of them worked. Every time I attempted an install, repair or
restore, the computer would restart normally.
I searched the Internet and the findings were roundabout,
because instructions differed depending on the model of computer. I determined
that how your primary disc is partitioned, governs whether you boot into BIOS
or UEFI. The Microsoft article, “Boot to UEFI or Legacy Mode”1 explained
that if your hard drive is GPT you should boot using UEFI. In contrast, if your
hard drive is partitioned to use MBR you should use BIOS. Choosing the wrong
option could cause installation or boot failures. I also found some posts of users that experienced
issues with Secure Boot and installation. Secure boot protects your computer
from manipulation by allowing only trusted software to load at startup.
So I began to troubleshoot the Secure Boot scenario. First,
I disabled Secure Boot and enabled Legacy Support, however my installation
failed. Next, I disabled Secure Boot, enabled Legacy Support then booted into
UEFI. However my installation failed. Finally, I enabled Secure Boot, disabled
Legacy Support, restarted and booted directly into UEFI using the F9 button. I
knew I was successful when I got press any key to boot screen.
So if you are experiencing issues booting to a CD, first
determine if you are booting to UEFI or BIOS.
The “Boot to UEFI Mode or Legacy Bios Mode”2 article has the
best set of instructions I found to change the boot mode. Since the function key
varies depending on your model, you’ll either have to guess or consult your
manufacturer’s website for more information.
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