Reimage or Reinstall When Necessary for A+
Short answer
If after containment, disabling System Restore, updating tools, and running offline scans the system still exhibits compromise, reimage or reinstall the OS. Before wiping, back up user data selectively after scanning backups on a known-good system, and avoid restoring program installers or unknown executables from those backups. Preserve documentation of the pre-image state in case further analysis is needed. After rebuild, apply updates, reinstall AV, and restore user data from verified clean sources.
Why it appears on the exam
- Given a scenario with persistent symptoms after cleaning, decide whether to reimage or continue remediation and justify the choice. - Identify safe steps to back up user data prior to reinstall.
Key concepts
Concept 1
Required terms
reimage / reinstall: Wiping and restoring the operating system image or performing a clean OS installation when remediation cannot restore system integrity. reimage / reinstall: the process of wiping and restoring an OS image or performing a clean installation when cleanup is insufficient.
Example
Technician performs a clean install of Windows, reinstalls applications from original installers or trusted sources, restores user documents from scanned backups.
Concept 2
How Reimage or Reinstall When Necessary works
If after containment, disabling System Restore, updating tools, and running offline scans the system still exhibits compromise, reimage or reinstall the OS. Before wiping, back up user data selectively after scanning backups on a known-good system, and avoid restoring program installers or unknown executables from those backups. Preserve documentation of the pre-image state in case further analysis is needed. After rebuild, apply updates, reinstall AV, and restore user data from verified clean sources.
Example
Reimaging a corporate image is outside this lesson focus for SOHO; the technician performs a standard clean install or vendor-recommended recovery.
Concept 3
Common confusion
- Restoring user data wholesale from an infected machine's backup without scanning can reintroduce malware. - Believing reimage is always unnecessary if AV claims removal; integrity may still be questionable.
Example
Technician performs a clean install of Windows, reinstalls applications from original installers or trusted sources, restores user documents from scanned backups.
Concept 4
Core 2 (220-1202) question cues
Given a scenario with persistent symptoms after cleaning, decide whether to reimage or continue remediation and justify the choice; Identify safe steps to back up user data prior to reinstall.
Example
Reimaging a corporate image is outside this lesson focus for SOHO; the technician performs a standard clean install or vendor-recommended recovery.
Sample questions
Select an answer to reveal the explanation. For tracked practice and weak-area review, use the Cultiv8 app.
Q1.A technician is troubleshooting this situation: Technician performs a clean install of Windows, reinstalls applications from original installers or trusted sources, restores user documents from scanned backups. What should they identify?
Q2.A technician sees this situation: Reimaging a corporate image is outside this lesson focus for SOHO; the technician performs a standard clean install or vendor-recommended recovery. Which answer should they choose?
Q3.A support scenario about Reimage or Reinstall When Necessary feels similar to a nearby topic. What is the safest way to choose an answer?
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