What would cause a Microsoft Windows update to fail?

What would cause a Microsoft Windows update to fail?

  • The wired or wireless NIC was disabled.
  • The computer has a virus.
  • The computer has had its security breached.
  • A required prior update was not installed.
    Explanation:

    Two things commonly cause a Windows update to fail:

    1. A required older update was not installed.
    2. There was a problem with the downloaded update.