![]() ![]() To update the boot sector code of the partition used to boot the system with the code that loads and runs the BOOTMGR bootloader: To update the master boot record ( MBR) code of the disk in the case it got corrupt or rewritten, resulting in the inability to boot the system: The bootrec utility exits 0 on success and 1 if an error occurs. adding them to the boot configuration data. ![]() Rebuilds the boot configuration data ( BCD) by updating it with a choice to boot into versions of Windows installed on the disk that were previously unbootable i.e. Scans all disks for Windows installations that are Windows Vista or of a newer version and returns the number of installations that are not listed in the boot configuration data ( BCD i.e. Updates the boot sector code of the partition used to boot the system with the code that loads and runs the BOOTMGR bootloader i.e. It doesn’t edit the existing partition table. Updates the master boot record ( MBR) code with the code compatible with Windows Vista, 7, 8, 10. It can be used to update a disk’s master boot record ( MBR) code, a partition’s bootsector code, or to rebuild the boot configuration data ( BCD). The bootrec.exe utility takes only one of several valid argument, depending on the desired correction behavior. Arguments enclosed with braces Description
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