Hello Snookred,
Thank you for posting in Q&A forum.
You can follow these steps:
- Open Command Prompt as Administrator:
Press Win + X and select Command Prompt (Admin) or Windows PowerShell (Admin).
- Enable Boot Manager GUI: Type the following command and press Enter:
bcdedit /set {bootmgr} displaybootmenu yes
- Restart Your Computer:
After running the command, restart your computer.
The Windows Boot Manager GUI should now be enabled, allowing you to make various adjustments during boot.
I hope the information above is helpful.
If you have any questions or concerns, please feel free to let us know.
Best Regards,
Daisy Zhou
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