Chill guys , I got the solution for this , and it's very simple:
1- Enter the BIOS
2- Go to "Security" section in BIOS
3- You will find (Secure Boot: Enabled) , well go and disable that !
4- Then go to "Advanced" section in BIOS and enter the "System Configuration"
5- Now as you can see you can change the "Boot Mode" after we disabled the "Secure Boot"
6- So just go and change the "Boot Mode" form (UEFI Boot) to (CSM Boot)
7- That's it =D save the new settings in BIOS and restart with your bootable DVD or Hard Disk
Now your laptop will read and boot from any DVD or USB Hard Disk
Hope this work with you guys
Cheers
