In this scenario, the computer starts by using Windows NT Loader (NTLDR) instead of Windows Boot Manager (Bootmgr.exe). Wait for the ‘Advanced options’ screen to appear -> Command prompt. In Command prompt write the following commands and hit Enter key after each command: bootrec /FixMbr. The boot sector has been replaced with a non-standard Windows Vista boot sector.Īn earlier Windows operating system has been installed after Windows Vista was installed. Here is another method to repair the MBR without the installation disk: Go to the fix ‘Employ Windows Troubleshoot’ and take the first seven steps. Choose Troubleshoot > Advanced options > Command prompt. Use this option if one of the following conditions is true: The /FixBoot option writes a new boot sector to the system partition by using a boot sector that is compatible with Windows Vista. Use this option when you must resolve MBR corruption issues, or when you have to remove non-standard code from the MBR. This option does not overwrite the existing partition table. The /FixMbr option writes a Windows Vista-compatible MBR to the system partition. This command can write a new Windows-compatible MBR based on the version of your windows to the boot sector and it will not overwrite the existing partition table. To do this, type the following commands at the Windows RE command prompt: To fix damaged MBR, in Command Prompt window, input Bootrec /fixmbr and hit Enter key. By doing this, you make sure that the BCD is completely rebuilt. Note If rebuilding the BCD does not resolve the startup issue, you can export and delete the BCD, and then run this option again.
USE BOOTREC HOW TO
How to use the Bootrec exe tool to repair startup issues in Windows by Britec
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