Which command is commonly used to repair disk issues by rewriting the MBR in Windows?

Which command is commonly used to repair disk issues by rewriting the MBR in Windows?

• A. Fixmbr
• B. Chkdsk
• C. Diskpart
• D. Sfc

Answer: (A)

Rewriting the boot sector to fix startup problems is what Fixmbr does. The Master Boot Record sits at the very beginning of the disk and contains the boot code that starts the ОС, plus the partition table. If the MBR is damaged or infected, the system might not boot, and rewriting it with clean bootstrap code can restore normal startup. This is a focused repair of the boot code, not a broad disk or file-system repair. Chkdsk checks and repairs filesystem integrity and disk errors but doesn’t modify the boot sector. Diskpart is a partition-management tool and doesn’t fix the boot code. Sfc scans and repairs Windows system files, not the master boot record.

Rewriting the boot sector to fix startup problems is what Fixmbr does. The Master Boot Record sits at the very beginning of the disk and contains the boot code that starts the ОС, plus the partition table. If the MBR is damaged or infected, the system might not boot, and rewriting it with clean bootstrap code can restore normal startup. This is a focused repair of the boot code, not a broad disk or file-system repair.

Chkdsk checks and repairs filesystem integrity and disk errors but doesn’t modify the boot sector. Diskpart is a partition-management tool and doesn’t fix the boot code. Sfc scans and repairs Windows system files, not the master boot record.