On which two occasions is it most likely that a technician will have to perform a clean operating system installation if a backup has not been performed? (Choose two.)

  • A user requires access to a new printer.
  • The existing operating system is corrupted.
  • The existing security software requires upgrading.
  • The computer is being moved to a different network.
  • A new replacement hard drive is installed in a computer.
Explanation & Hint:

A clean installation of an operating system is usually required when:

  1. The existing operating system is corrupted: If the operating system has been damaged to the point where it cannot be repaired through other means (such as system repair, restoration, or in-place upgrades), a clean install is often the best or only option to get the system back to a functioning state.
  2. A new replacement hard drive is installed in a computer: If the computer’s primary hard drive, which contains the operating system, fails or is replaced, a clean installation of the operating system will be necessary, as the new drive will not have an operating system on it.

The other scenarios listed do not typically require a clean operating system installation:

  • A user requires access to a new printer: This situation usually requires the installation of the appropriate printer drivers and software, not a reinstallation of the entire operating system.
  • The existing security software requires upgrading: Upgrading security software is a common maintenance task and does not require reinstalling the operating system. It can typically be done within the existing environment.
  • The computer is being moved to a different network: Moving a computer to a different network does not affect the installed operating system.

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