In File Manager, right-click the file C:\bootmgfw_2023.efi, click Properties, and then select the Digital Signatures tab. In the Signature list, confirm that the certificate chain includes Windows UEFI CA 2023.

It replaces the 2011 signed bootmgfw.efi with the 2023 signed bootmgfw.efi. Be advised of the consequences of resetting the DB or toggling Secure Boot, as this can cause a "Secure Boot violation" issue.

Microsoft Support

The PowerShell script described in this article can be used to update Windows bootable media so that the media can be used on systems that trust the “Windows UEFI CA 2023” certificate.

[Secure Boot] This SSU update replaces the 2011 signed bootmgfw.efi with the 2023 signed bootmgfw.efi if the 2023 PCA is in the DB. Note: This servicing stack update (SSU) includes enhanced logic to verify whether a device is hosted on Azure, leveraging an updated certificate chain for validation.

When the Windows Boot Manager application (Bootmgfw.efi) tries to clean up these page table entries, this application accesses an invalid memory address and causes an access violation exception.

Note The Bootmgfw.efi application is the Windows Boot Manager application. A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem.

Assume that you start a Pre-Boot Execution Environment (PXE) Extensible Firmware Interface (EFI)-based client computer, and then you connect it to a Windows Deployment Service (WDS) server that is running Windows Server 2008 R2.

Fixes a "c0000225" error that occurs when you try to start a Windows PE RAM disk image in Windows 7 or in Windows Server 2008 R2 if the UEFI mode is enabled.

Note The Bootmgfw.efi application is the Windows Boot Manager application. A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem.