KB5025885: How to manage the Windows Boot Manager revocations for ...
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 .
A UEFI-enabled computer may "hang" at a black screen in the startup ...
When the Bootmgfw.efi application 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. Resolution Hotfix information. A supported hotfix is available from Microsoft.
Slow PXE boot performance on a UEFI computer that's running Windows 8.1 ...
On a Unified Extensible Firmware Interface (UEFI) computer that's running Windows 8.1 or Windows Server 2012 R2, you discover that PXE boot performance is slower than expected. Cause. This problem occurs because during the PXE boot, the boot image takes a long time to download. Resolution. To resolve this problem, apply the following hotfix.
KB5031471: Compatibility update for installing and recovering Windows ...
winload.efi. 10.0.14393.6341. 11-Sep-23. 21:42. 1,079,440. bootmgfw.efi. 10.0.14393.6341. 11-Sep-23. 21:41. 1,008,944. bootmgr.efi. 10.0.14393.6341. 11-Sep-23. 21:41. 994,624. boot.stl. Not versioned. 11-Sep-23. 18:57. 10,689. bootux.dll. 10.0.14393.206. 15-Sep-16. 9:57. 3,716,096. winresume.exe. 10.0.14393.6341. 11-Sep-23. 21:43. 785,560 ...
KB5027389: Compatibility update for installing and recovering Windows ...
bootmgfw.efi. 10.0.19041.3083. 17-May-23. 22:08. 1,563,464. bootmgr.efi. 10.0.19041.3083. 17-May-23. 22:07. 1,546,584. boot.stl. Not versioned. 13-May-23. 22:53. 10,717. winsipolicy.p7b. Not versioned. 13-May-23. 9:27. 9,796. bootux.dll. 10.0.19041.505. 27-Aug-20. 0:27. 4,006,400. winload.efi. 10.0.19041.3083. 17-May-23. 22:06. 1,797,920 ...
A UEFI-enabled computer stops responding at a black screen in the ...
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. Resolution. Hotfix information. A supported hotfix is available from Microsoft.
0x00000007 error when you start a computer into Windows Recovery ...
This issue occurs because the Windows Boot Manager (Bootmgr.exe) allocates a large temporarily buffer in RAM to read the WIM file when the computer starts into Windows Recovery Environment (Windows RE). When the computer has 1 GB RAM, the allocation fails. How to obtain this update or hotfix.
MS16-100: Description of the security update for Secure Boot: August 9 ...
Summary. This security update resolves a vulnerability in Microsoft Windows. The vulnerability could allow security feature bypass if an attacker installs an affected boot manager and bypasses Windows security features. To learn more about the vulnerability, see Microsoft Security Bulletin MS16-100.
KB5034236: Compatibility update for installing and recovering Windows ...
Summary. This update makes improvements to the Windows recovery features for Windows 11, version 21H2. Note This compatibility update is included in KB5034440: Windows Recovery Environment update for Windows 11, version 21H2: January 9, 2024.
KB5036210: Deploying Windows UEFI CA 2023 certificate to Secure Boot ...
Windows updates released on and after February 13, 2024 include the ability to apply the Windows UEFI CA 2023 certificate to UEFI Secure Boot Allowed Signature Database (DB). Updating the DB will enable devices to receive future boot loader updates that are included in monthly updates.