220-802 · Question #188
Which of the following commands may need to be run after a virus removal if the computer will not boot?
The correct answer is C. FIXMBR. Many viruses-particularly boot-sector viruses and rootkits-infect the Master Boot Record (MBR), which is the first sector of the hard drive responsible for initiating the OS boot process. After the virus is removed, the MBR may be left corrupted or missing, preventing the…
Question
Which of the following commands may need to be run after a virus removal if the computer will not boot?
Options
- ASCANDSK
- BDXDIAG
- CFIXMBR
- DMSCONFIG
How the community answered
(17 responses)- C94% (16)
- D6% (1)
Explanation
Many viruses-particularly boot-sector viruses and rootkits-infect the Master Boot Record (MBR), which is the first sector of the hard drive responsible for initiating the OS boot process. After the virus is removed, the MBR may be left corrupted or missing, preventing the system from booting. The FIXMBR command (run from the Windows Recovery Console) rewrites the MBR with a clean copy, restoring the ability to boot. SCANDISK/SCANDSK is a file system checker, DXDIAG is a DirectX diagnostics tool, and MSCONFIG is a system configuration utility-none of these repair a damaged MBR.
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