You must disable Secure Boot in order to install Windows 7
This is a critical step.
You cannot install Windows 7 with Secure Boot turned on!
On the other hand, if you were to install Windows 10, it is perfectly alright to have Secured Boot turned on for an extra layer of security.
Select Secure Boot under the Boot Tab
Notice that the Secure Boot State is set to Enabled by default on your Motherboard.
To turn it off, click on Key Management.
Press Clear Secure Boot Keys
Do you really want to delete the current Secure Boot keys?
Press Yes.
This turns off Secure Boot.
Secure Boot state = Disabled
