220-802 Question #983: Real Exam Question with Answer & Explanation

The correct answer is D: Mark the disk active in diskpart. After imaging Windows 7 to a new drive, the system will not boot because the target partition has not been marked as the active boot partition. Using diskpart in the recovery console to mark the partition active resolves this.

Question

A technician has imaged Windows 7 to a new drive and installed it into the PC. The PC, however, will not boot the new disk. Using the recovery console, which of the following should the technician try NEXT?

Options

ASelect the bootable partition in fdisk
BFix the master boot record with fdisk
CUse the bootcfg /rebuild command to recreate the mbr
DMark the disk active in diskpart
EMark the partition as clean in diskpart

Explanation

After imaging Windows 7 to a new drive, the system will not boot because the target partition has not been marked as the active boot partition. Using diskpart in the recovery console to mark the partition active resolves this.

Common mistakes.

A. fdisk is a legacy DOS-era tool not available or appropriate in the Windows 7 recovery console for setting active partitions.
B. fdisk cannot fix the MBR in the Windows 7 recovery environment; bootrec /fixmbr is the correct command for that purpose.
C. bootcfg /rebuild is a Windows XP command that edits boot.ini, which does not exist in Windows 7 - Windows 7 uses the BCD store instead.
E. The 'clean' command in diskpart erases all partition and volume information from the disk rather than marking a partition as bootable.

Concept tested. Marking active partition with diskpart in recovery

Reference. https://learn.microsoft.com/en-us/windows-server/administration/windows-commands/diskpart

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