Asus Rog Strix B450 F Disable Secure Boot (Quick Fix)

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To fix Asus Rog Strix B450 F Disable Secure Boot read this guide. Many ASUS motherboards with UEFI BIOS come with Secure Boot mode enabled by default. It is simpler to install or set up Windows to dual boot on your computer if this capability is disabled.

On several models, it is impossible to turn off Secure Boot mode. Therefore, we must remove the BIOS keys that permit it. You can always go back and activate Secure Boot without difficulty, so don’t worry. You also don’t violate the warranty by turning Secure Boot on or off.

You must first activate GPT partitions on your computer with an ASUS motherboard before you can disable Secure Boot mode. For instance, if the machine is not in UEFI mode, you cannot install a copy of Windows on your computer. This mode must be supported or compatible with the hard disk partition style.

You can enable GPT partitioning on your hard disk when you enable UEFI mode. You can make as many partitions as you’d like, and they can be larger than 4 GB. Using a third-party program, or the command prompt are the two options for doing this.

Asus Rog Strix B450 F Disable Secure Boot

Enter after selecting “Save Secure Boot Keys.” When prompted to “Select a File System,” select the USB device. The USB contains four key files: PK, KEK, DB, and DBX. Save adjustments and restart to take effect (often F10). Boot without “secure boot” enabled.

How to fix Asus Rog Strix B450 F Disable Secure Boot

How To Fix Asus Rog Strix B450 F Disable Secure Boot?

Command Prompt

  • If you decide to accomplish this through Command Prompt, follow these steps.
  • Start the computer in UEFI mode by inserting the Windows installation disc or a USB flash drive.
  • Press Shift and F10 at the same time the installation starts. By doing this, the command prompt console will open. To access the disk partition tool, use the diskpart command. Permit it to alter your computer. To determine and list the disk format, use the list disk command.
  • The drive you want to format and convert to GPT should be chosen. Use the following commands to complete it: Clean (this command will wipe the disk), select disk, and convert to gpt (this will convert it to GPT).

Third-Party App

You can convert your hard disk to GPT with EaseUS Partition Master if you don’t want to fiddle with the command prompt. You may create, remove, erase, merge, and delete hard disk partitions with the aid of the software.

Partition Controller Pro (for a windows machine), Partition Controller Server (for servers), and Partition Master Unlimited are the three versions of the app that are offered for purchase (for multiple computers and servers). Free trials are offered for each of the three choices. They are available on the official EaseUS website.

Disable Secure Boot

  1. After completing all necessary preparations, it’s time to disable Secure Boot on your ASUS. Just carry out these actions.
  2. USB sticks can be connected to computers.
  3. Select Restart from the Start menu to restart your computer.
  4. Press the DEL key on your keyboard to enter the BIOS after the machine begins to boot. You might also need to push another button, depending on the model.
  5. The advanced setting. Pressing the F7 key will usually work. There are models with various shortcut keys, though.
  6. Unlock the boot area.
  7. Then select Secure Boot from the submenu.
  8. From the drop-down selection in the Operating system type section, choose Windows UEFI mode.
  9. Activate the Key management submenu.
  10. Select the option. Store the secure boot keys.
  11. Press Enter.
  12. Select the most recent USB drive connection when the BIOS prompts you to select a file system.
  13. BIOS then uses the USB device to hold DBX, DB, KEK, and PK key files.
  14. The platform key must then be taken out. This will take Secure Boot offline. Do not remove any other keys, please.
  15. Press the F10 key on your keyboard to exit the BIOS and save your adjustments. Your computer will restart as a result. Watch for it to start up in a mode other than Secure Boot.

Enable Secure Boot

Here’s how to reactivate Secure Boot if you decide to change your mind.

  1. Sync a USB drive with the computer.
  2. Select Restart from the Power menu by opening the Start menu.
  3. Press DEL (or any other designated key) to enter the BIOS as soon as your machine begins to boot.
  • To access the Advanced Mode part of the BIOS menu, use F7 (or another key that is allocated).
  • Unlock the boot area.
  • Open the Secure Boot section after that.
  • Select Windows UEFI mode from the drop-down menu under the OS Type option when you are there.
  • Go to Key management next.
  • Enter after navigating to the Load Default PK option.
  • You will load the default set of keys if you select Yes. When finished, save your settings and go. Hold off till the computer restarts. If you select No, you can load the made-up keys to be backed up.
  • If you selected No, pick the USB drive with the keys from the list titled “Select a file system” now.
  • Next, choose the PK key and press OK.
  • Select UEFI Secure Variable under Select Key file type, then click OK.
  • Select Yes when asked to Update ‘PK’ from the chosen ‘PK’ file.
  • Save your changes, then leave. Watch for the Secure Boot mode to start up on the computer.

How Do I Permanently Disable Secure Boot?

In your BIOS menu, look for the Secure Boot option. Set it to Disabled if at all possible. Typically, this option can be found in the Security, Boot, or Authentication tabs. Save changes, then leave.

Why Can’t I Disable Secure Boot?

Admin password set. Turn off Fast Boot. Re-enter the BIOS and load the factory defaults for the BIOS.


Have you solved Asus Rog Strix B450 F Disable Secure Boot? The majority of recent ASUS motherboards lack a setting that would enable customers to disable UEFI secure boot. The “Secure Boot Enabled” option is invariably greyed out and cannot be changed. The secure boot can be turned off, though, by simply deleting the secure boot keys.

There is no need to worry about voiding the warranty or corrupting the BIOS because this is reversible. The platform Key (PK) state should be “loaded,” and the Secure Boot state should be “activated” in the BIOS’ Secure Boot menu.

Frequently Asked Questions

Is secure boot reversible?

Using trusted firmware only, Secure Boot helps to ensure that your computer boots properly. The method for disabling Secure Boot varies by PC manufacturer but is typically done within the PC’s firmware (BIOS) menus.

How do I use the ASUS UEFI BIOS utility to enable or disable secure boot on your computer?

UEFI BIOS Utility by ASUS Put the Advanced Mode on (F7 or any other key as specified). Look beneath the Boot section for the “Secure Boot” option. UEFI BIOS Utility by ASUS – Boot options Make sure the correct OS Type is chosen, then enter Key Management. Enter after selecting “Save Secure Boot Keys.”

How can I secure boot my Asus and enable TPM 2.0?

Select UEFI Firmware options by clicking it. Select Restart from the menu. Click the advanced, security, or boot settings page depending on the motherboard. Choose the TPM 2.0 option, then select Enabled.

How do I turn on UEFI in the ASUS BIOS?

Choose between Legacy and UEFI Boot Mode. Boot Mode in BIOS (BIOS)
1.     Navigate to the BIOS Setup Utility.
2.     Choose Boot from the BIOS Main menu screen.
3.     Press Enter after selecting UEFI/BIOS Boot Mode from the Boot screen.
4.     Press Enter after selecting either the Legacy BIOS Boot Mode or the UEFI Boot Mode using the up and down arrows.

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