UEFI BIOS – Change Windows Version – Boot from CD

The newer UEFI type BIOS prevents you from:

Booting your computer from a CD or USB;
Remove Windows 10 and replace it with Linux or an earlier version of Windows.


Fixing the Problem:
Enter BIOS;
Go to Security;
Disable Secure Boot;
Go to Advanced;
Go to System Configuration;
Change Boot Mode to CSM Boot;
Go to Boot;
Set your preferred Boot Order.

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