Dism Error 87 Fixed

The story of fixing DISM Error 87 is often a tale of "the missing space." It begins with a frustrated user trying to repair a glitchy Windows system, only to be met with a cryptic message: "The cleanup-image option is unknown." The "A-ha!" Moment: The Missing Space

  • Inspect logs:
    • Corrupted system files: Corrupted system files can prevent DISM from functioning correctly, leading to Error 87.
    • Incorrect syntax or parameters: Incorrect syntax or parameters in the DISM command can cause the error.
    • Insufficient privileges: Running DISM without administrative privileges can result in Error 87.
    • Conflicting software or services: Conflicting software or services can interfere with DISM, causing the error.
    • dism /Online /Cleanup-Image /CheckHealth
    DISM /Online /Cleanup-Image /RestoreHealth /Source:<path> ❌

    Solution 3: Use the Correct Syntax

    1. Ensure that you are using the correct syntax for the DISM command.
    2. Verify that you have specified the correct options and parameters.

    DISM /online /cleanup-image /restorehealth /source:e:\sources\install.wim dism error 87 fixed

  • Restore using a local source (install.wim or install.esd):