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Can't install/enable .NET 3.5 Framework

Anonymous
2018-03-14T06:28:41+00:00

I can't install .net framework 3.5 on my windows 10 dell precision m3800. When I install using the offline installer, it say that I need to enable .net framework 3.5 on windows features.  When I go to windows features and check the option, it tells me to restart my pc to complete the changes, but when I restart, it is same again.I can't insall ArcGIS due to this problem.

Windows for home | Windows 10 | Devices and drivers

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  1. Anonymous
    2018-03-17T04:01:00+00:00

    Since you are getting that error. We suggest you to try downloading the .Net Framework 3.5 on your Windows 10 PC. Kindly follow these steps:

    1. Go into RegEdit and set the HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU folder.
    2. DoubleClick on UseWUServer(UseWindowsUpdateServer) and change the value to 0.  (If the value is already 0 this fix may not work for you.)
    3. You may need to restart afterwards.

    Note: The method to fix the issue will have Registry modification. Before you modify the Registry, make sure to back it up and understand how to restore the registry if a problem occurs. Please refer to this link: How to back up and restore the registry in Windows.

    Keep us in the loop with the result.

    30+ people found this answer helpful.
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  2. Anonymous
    2018-03-17T04:12:08+00:00

    There is no Windows update here.

    10+ people found this answer helpful.
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  3. Anonymous
    2018-03-16T02:35:03+00:00

    We appreciate the screenshot that you have provided us. Since you are unable to install .NET Framework using Windows features you can also install it thru the DISM command. Here are the steps:

    1. Open a command prompt with administrator user rights (Run as Administrator).
    2. To Install .NET Framework 3.5 feature files from Windows Update, use the following command:

    DISM /Online /Enable-Feature /FeatureName:NetFx3 /All

    1. On Windows 10 PCs, after installation .NET Framework 3.5 is displayed as enabled in Turn Windows features on or off in Control Panel.

    Keep us in the loop with the result.

    10+ people found this answer helpful.
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  4. Anonymous
    2018-03-15T02:28:47+00:00

    We appreciate you getting back to us. You might be encountering this issue because a higher version of .NET Framework is enabled in your computer resulting in a conflict. Normally, this problem happens when .NET Framework 4.6 is currently installed. In line with this, we suggest that you uninstall or disable .NET 4.6 Framework Advanced Services in Windows Features and then try installing .NET 3.5 Framework again. You may refer to this screenshot for your reference:

    Furthermore, these components are installed on your system using the Windows Update service. To troubleshoot this issue, kindly download and run the Windows Update Troubleshooter. This automated tool fixes some common Windows Update errors.

    Let us know how that turned out for you.

    10+ people found this answer helpful.
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  5. Anonymous
    2018-03-15T16:35:08+00:00

    10+ people found this answer helpful.
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