Windows 10: Severe issues with display duplication/projection on Windows 11 Pro 24H2

Discus and support Severe issues with display duplication/projection on Windows 11 Pro 24H2 in Windows 10 Software and Apps to solve the problem; Before I get into anything, a warning Yes, you are REQUIRED to read the warning FIRST! I waive ANY AND ALL responsibility for WHATEVER happens as a... Discussion in 'Windows 10 Software and Apps' started by Ender Shadowborne, Jun 29, 2025 at 3:27 PM.

  1. ENDER SHADOWBORNE
    Ender Shadowborne Win User

    Severe issues with display duplication/projection on Windows 11 Pro 24H2


    Before I get into anything, a warning Yes, you are REQUIRED to read the warning FIRST! I waive ANY AND ALL responsibility for WHATEVER happens as a result of YOUR failure to comply with this requirement, and thus your failure to read the warning. Also, DO NOT whine at me about whatever it says, just don't... YOU HAVE BEEN WARNED!I am a VERY angry sergal right now! And as much as I'd LOVE to take this anger out on Microsoft, they're CLOSED as of writing this! So instead, I'm forced to bottle up my immense frustrations and unhinged fury! An angry sergal is NOT someone you wanna poke with anyth

    :)
     
    Ender Shadowborne, Jun 29, 2025 at 3:27 PM
    #1
  2. DEBRA_H
    Debra_H Win User

    Vertical line appears in duplicate mode in Windows 11, version 24H2

    I have an external display, and project to this display in duplicate mode. If I move the mouse cursor to the right edge of the external display, a corrupted vertical line on the right edge of the screen appears.

    This issue only began to appear after installing Windows 11, version 24H2.
     
    Debra_H, Jun 29, 2025 at 3:34 PM
    #2
  3. LONNIE_L
    Lonnie_L Win User
    Vertical line appears in duplicate mode in Windows 11, version 24H2

    Microsoft is aware of an issue in Windows 11, version 24H2, that can create this vertical line on the right edge of an external display when projecting in duplicate mode.

    Microsoft plans to address this issue in a future Windows update. We will update this post when the Windows update becomes available.
     
    Lonnie_L, Jun 29, 2025 at 3:34 PM
    #3
  4. KRISHNA PRASOBH V
    Krishna Prasobh V Win User

    Severe issues with display duplication/projection on Windows 11 Pro 24H2

    Issues with projecting the display.

    Hi,

    I appreciate if you could answer few questions to narrow down to the issue.


    • Are you running any virtual machines on the computer and what does it mean when you say one display being virtual?

    • Does that mean you are able to see a duplicate screen within the display itself?
    As an initial troubleshooting step, I suggest you to refer to the article provided below and check if that helps.

    Windows help and learning

    Applies to Windows 10.

    Hope the information helps in resolving the issue. Please do let us know if you need further assistance. We will be glad to assist you.

    Thank you.
     
    Krishna Prasobh V, Jun 29, 2025 at 3:34 PM
    #4
Thema:

Severe issues with display duplication/projection on Windows 11 Pro 24H2

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