How to download Framework 3.5 on my laptop?

ValVal 0 Reputation points
2026-09-11T17:48:04.89+00:00

Hello

i cant seem to be able to download framework 3.5, it keeps on giving me error 0x8007007E and when i try to do it using appwiz it doesnt appear either, i have windoes 11 vers 25H2 and OS 26200... I havent been able to play any steam game and i dont trust AI to help me fix this in case i mess things up, please help me fix this asap! I also have problems installing updates, having catastrophical error (error 0x8000ffff)

Windows for home | Windows 11 | Gaming
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  1. AI answer

    2026-09-11T17:48:22.75+00:00

    On Windows 11 version 25H2, .NET Framework 3.5 is enabled as a Windows feature, not installed from the old offline installer.

    1. Open Start and search for Windows Features.
    2. Open Turn Windows features on or off.
    3. Check .NET Framework 3.5 (includes .NET 2.0 and 3.0).
    4. Select OK.
    5. Restart if prompted.

    Do not use the .NET Framework 3.5 SP1 offline installer for Windows 11. That installer is for Windows versions prior to Windows 10.

    Since Windows Update is also failing on this PC, the .NET 3.5 install may be blocked by the same servicing problem.

    For .NET 3.5 installation failures tied to update/download issues:

    • If Windows cannot download required files, verify the PC has Internet connectivity and can reach Windows Update.
    • If the PC is managed by WSUS or policy, the relevant Group Policy can block optional component downloads.
    • Error 0x800F0906 means source files could not be downloaded.
    • Error 0x800F0907 means policy settings blocked the download.

    Because this system is Windows 11 25H2, .NET Framework 4.8.1 is already included. The missing piece for older games and apps is specifically .NET Framework 3.5.

    If Windows Features does not show .NET Framework 3.5 correctly or Windows Update is failing with broader errors such as 0x8000FFFF, an in-place repair install of Windows 11 is a documented recovery path that preserves files, settings, and apps when the recommended ISO for that PC is used:

    1. Download the Windows 11 Media Creation Tool.
    2. Run it and download the ISO recommended for the PC.
    3. Right-click the ISO and select Mount.
    4. Run setup.exe from the mounted ISO.
    5. In setup, select Change how Setup downloads updates.
    6. Select Not right now.
    7. Continue the in-place upgrade/repair installation.

    This is the most relevant next step when both .NET installation and Windows Update are failing together.

    AI-generated content may be incorrect. Read our transparency notes for more information.

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  2. Lester Bernard Reyes 84,725 Reputation points Independent Advisor
    2026-09-11T18:24:45.94+00:00

    Hi, I'm Bernard. I'm happy to help!

    This is an issue with a misconfigured .Net Framework on the PC. To sort out the issue, kindly follow the steps below:

    Method 1. Download and Repair using Microsoft .NET Framework Repair Tool

    Kindly download and repair the Framework using this link: https://www.microsoft.com/en-us/download/details.aspx?id=30135

    Once done downloading and running, try restarting the device and check.

    Method 2. Uninstall and reinstall .Net Framework

    Press the Windows key + R, then type in:

    optionalfeatures

    Then hit OK

    Uncheck for .Net Framework 3.5, then follow the prompt and restart the PC.

    Once the PC is booted again.

    Press the Windows key + R, then type in:

    optionalfeatures

    Then hit OK

    Click on Turn Windows Features on or off

    Check for .Net Framework 3.5, then follow the prompt and restart the PC.

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