Secure boot make BSOD; during your installation of Windows 11, a FAT32 partition was not created to store the EFI boot

Jakub przekwas 0 Reputation points


I've been trying to fix my problem for a week. After enabling secure boot, I get a blue screen. I described all the progress in solving the problem so far on the Microsoft Community Forum at this link:

Unfortunately, I wasn't able to fix the problem, but the moderator suggested that the problem may be:

"This means that for some reason during your installation of Windows 11, a FAT32 partition was not created to store the EFI boot, which could indeed cause your situation. This situation requires you to manually create such a partition to store the EFI boot files. "

Then he suggested that I write here. After enabling secure boot, all disks disappear from the list of boot devices and only the MCT pendrive remains. MCT pendrive was suggested by the moderator to use it to repair the system at boot, but after booting from this pendrive I get a BSOD. The error code is in the screenshot.

Windows 11
Windows 11
A Microsoft operating system designed for productivity, creativity, and ease of use.
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  1. Hania Lian 11,036 Reputation points Microsoft Vendor


    Is your boot drive formatted to GPT?

    Fix: Computer won't boot after enabling Secure Boot (

    Also you may try to update the BIOS version to check.

    If a FAT32 partition for EFI boot is missing, you will need to create one. This can be done using a disk partitioning tool such as Disk Management or a third-party tool like GParted. Here’s a general procedure:

    a. Boot your computer using a Windows installation USB or DVD.

    b. When you reach the installation screen, press Shift + F10 to open the command prompt.

    c. Type the following commands:

    diskpart (opens the DiskPart utility)

    list disk (displays the list of disks on your computer)

    select disk X (X represents the disk number where you want to create the partition)


    convert gpt (converts the disk to GPT partition style)

    create partition efi size=200 (creates a 200 MB EFI system partition)

    format quick fs=fat32 label=“EFI” (formats the partition as FAT32 with the label “EFI”)

    list partition (verifies that the partition was created successfully)

    exit (exits DiskPart)

    d. Close the command prompt and continue with the installation.

    Please note back up the important files before modifying the disk configuration.

    Best Regards,

    Hania Lian


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