Alienware r3 17 Catalina

Hi all, I am requiring help to start a Alienware r3 17 project with Catalina. Today I decided to start with the installation with no success. Got stuck booting with the unibeast usb, the thing is that the usb doesn't appear in the UEFI menú option. Here are the steps followed for initialize the usb with unibeast. I took so many resources to start but don't know how to implement.

These are the resources so far I found with similar o almost equal computers:

If some one could help me to find the way my computer recognize the unibeast usb for booting

Here are my specs: Alienware r3 17

submitted by /u/Memogcia
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