A desktop computer initialized with a legacy Master Boot Record (MBR) system partition fails to start following an unexpected system power interruption. Upon powering on, the machine halts immediately after POST with the message 'Operating System not found'. The technician boots into the Windows Recovery Environment (WinRE) command prompt to repair the fundamental boot records on the disk. Which TWO of the following bootrec utility operations must the technician execute to repair the corrupted master boot code and rewrite the partition boot sector? (Select TWO.)
- bootrec /fixmbrCevap
- bootrec /fixbootCevap
- Cbootrec /scannow
- Dbootrec /reinstall
Cevap
The technician must run bootrec /fixmbr to repair the Master Boot Record and bootrec /fixboot to write a new boot sector to the system partition.
The correct selections are bootrec /fixmbr and bootrec /fixboot. On legacy MBR systems, an 'Operating System not found' error occurs when the MBR or the partition boot sector is missing or corrupted. Running bootrec /fixmbr writes a master boot record to the system partition, and bootrec /fixboot writes a new boot sector to the system partition to restore normal startup capability.
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Troubleshooting MBR and Partition Boot Sector Corruption using WinRE CLI utilities
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