Hi ,
Have you tried installing Windows via USB?
Thanks
Error Enabling Secure Boot on ASUS TUF Gaming B550-PLUS WiFi II
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Nawaf
0
Reputation points
Details
When Secure Boot is enabled on an ASUS TUF Gaming B550-PLUS WiFi II motherboard, Windows 10 and Windows 11 fail to boot due to a winload.efi error. Disabling Secure Boot allows normal booting.
Steps Already Attempted:
- Tested multiple OS versions – Clean installed both Windows 10 and Windows 11.
- Fresh USB installers – Created official UEFI-compatible bootable USB drives using Microsoft’s Media Creation Tool. Verified the presence of bootx64.efi in EFI\BOOT.
- Isolated storage devices – Disconnected all internal drives and attempted booting from USB only. The issue persists.
- BIOS settings verification – Disabled CSM, set OS Type to Windows UEFI Mode, ensured Secure Boot Mode is Standard.
- Secure Boot keys reset – Cleared all keys and reinstalled default Secure Boot keys from BIOS.
- Rebuilt EFI partition – Deleted all partitions, allowing Windows Setup to recreate the EFI System Partition during clean install.
- BIOS updates – Tested both older and latest BIOS versions; the issue existed before and after updating.
- Cleared CMOS – Performed a full CMOS reset to ensure no residual settings were interfering.
- Attempted repair options – Unable to access Command Prompt from the installer when Secure Boot is enabled.
Windows for home | Windows 11 | Install and upgrade
2 answers
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(92.8, 25%, 18%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EIB%3C/text%3E%3C/svg%3E)
Ivan Bitencourt 61,870 Reputation points Independent Advisor2025-08-10T00:16:09.0366667+00:00 -
Ivan Bitencourt 61,870 Reputation points Independent Advisor
2025-08-10T02:25:36.28+00:00 Hi ,
If you create a USB Flash drive again with Media Creation Tools, access the BIOS and check if the storage default is AHCI. Disable CSM and Secure Boot initially.
From the boot, install Windows 11. Once the installation is complete, access the BIOS > Secure Boot > change it to active and the mode to standard. Save, access the BIOS and check if the first boot is set to Windows Boot Manager.
Thanks
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Nawaf 0 Reputation points
2025-08-11T06:11:22.46+00:00 It won't work if the secure boot is disabled I tried that because the secure boot + UEFI is one of the requirements to boot through windows 11. It don't get bypassed
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Ivan Bitencourt 61,870 Reputation points Independent Advisor
2025-08-11T19:43:10.3033333+00:00 Hi ,
You have to boot the installation without secure boot activated. Did you check that when doing the installation it created the boot name windows boot manager?
Thanks
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Ivan Bitencourt 61,870 Reputation points Independent Advisor
2025-08-13T05:35:59.1533333+00:00 Hi ,
Did you manage to solve the problem?
Thanks
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