Fixes an issue in the Cdboot.efi, Cdboot_noprompt.efi, Efisys.bin, and Efisys_noprompt.bin files that causes a "Boot failed" error message. This issue occurs when you start a UEFI-enabled computer from the installation DVD of a 64-bit version of Windows 7 or Windows Server 2008 R2.

Press any key to boot from CD/DVD. In this scenario, you receive an error message that resembles the following: Boot failed. Cause. This issue occurs because the boot manager compares two device signatures incorrectly.

A recoverable error occurs when Winload.efi or Winresume.efi is loaded, and then Windows Recovery Environment (WinRE) is started. In the scenario, the startup process may hang (stop responding) at a black screen.

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.

How to format a USB flash drive or external storage device to NTFS on Windows. To update or repair an Xbox console from a USB flash drive, you'll need a 4 GB USB flash drive formatted to NTFS. For more info about troubleshooting system updates, see: Troubleshoot system updates on Xbox.

Resolution. To fix this, use the following methods to troubleshoot this Windows Start error. Note To complete these steps, you must have a Windows 8.1, Windows 8, Windows 7 or Windows Vista installation disc. If you do not have a disc, please contact your computer manufacturer or Microsoft Support to obtain one.

When you turn on your Surface, it boots to UEFI (Unified Extensible Firmware Interface). If you see this, try the following steps for a possible solution. Solution 1: Check the configuration. Solution 2: Force restart. Solution 3: Reset your Surface using a USB recovery drive. Solution 4: Request service.

In the details pane, right-click or swipe down on Windows Installer, and then select Start. Describes how to use the clean boot process to troubleshoot a problem in Windows 8.1, Windows 8, Windows 7, or Windows Vista.

You can use installation media (a USB flash drive or DVD) to install a new copy of Windows, perform a clean installation, or reinstall Windows. To create installation media, go to the software download website, where you'll find step-by-step instructions.

While the requirement to upgrade a Windows 10 device to Windows 11 is only that the PC be Secure Boot capable by having UEFI/BIOS enabled, you may also consider enabling or turning Secure Boot on for better security.