Windows 8.1 How to Disable Fast Boot and Sartup From CD/DVD

Windows 8.1 Disable Fast Startup for GNU/Linux Installation

The Guide shows you Step-by-Step How Disable Fast Boot on Windows 8.1 and Startup with CD/DVD Installation Media on Uefi PCs usually with OS Pre-Installed.

But if you are riding Windows 8.0 Instead, Follow the Linked Guide!.

And this Visual Guide includes the Basic Screenshots of All GUI Steps involved.

The Contents and Details of Windows 8.1 How to Disable Secure Boot for Linux Installation Give Focus Only to the Essentials Instructions and Commands and Make the Tutorial Easier to Read and Digest ;)

1. Move Cursor to Low-Right Corner > Select Settings.

   

2. Then Select “Change PC Setting”.

   

3. Search “boot” >> Change Advanced Startup Options.

   

4. Advanced Start-Up > Restart Now.

   

5. Select Troubleshoot.

   

6. Choose Advanced Options.

   
   If Windows Start with the Repair Process then Go Back and Try Again!

7. Choose UEFI Firmware Settings
   But If No UEFI Firmware Entry then Follow

   Win8.1 Startup from CD/DVD Setup

   Win8 Startup from CD/DVD

   

8. Confirm Restart
   

9. On Boot Logo Screen try to Hit Del/Cancel or F2 Key to Enter BIOS
   But in case of failure see: How to Enter BIOS on PCs & Motherboards.

10. Select the “Authentication” Tab on BIOS
    Here the Tabs and the Exact title of Commands may Vary depending from the Specific BIOS of your PC Model…
    Disabling Secure Boot.

    

11. Select the Boot Options Tab

    • Launch CSM = Always

    • 1St Boot Device = CDROM or DVD

    • Disable All Boot Options on Bottom But Enable “Boot Menu”

    F10 to Save and Exit.

    If Do Not Boot directly from CD/DVD try to Reboot.

If Do Not Works Follow This Troubleshooting

Windows 8 Boot from CDRom
Windows 8 Enter BIOS to Boot from CDRom.

After you Should be Finally, Free to Evade from Win8 and Booting Up Linux! :)