طريقة تفعيل النت فريم ورك فى ويندوز 8 او 8.1 او ويندوز 10--NET Framework 3.5

الموضوع في 'منتدى البرامج المشروحة' بواسطة okpa, بتاريخ ‏21 نوفمبر 2014.

  1. okpa

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    طريقة تفعيل النت فريم ورك فى ويندوز 8 او 8.1 او ويندوز 10--NET Framework 3.5



    Installing the .NET Framework 3.5 on Demand

    If an app requires the .NET Framework 3.5, but doesn't find that version enabled on your computer, it displays the following message box, either during installation, or when you run the app for the first time. In the message box, choose Install this feature to enable the .NET Framework 3.5. This option requires an Internet connection.


    Prompt for installing the .NET Framework 3.5 on demand

    [​IMG]

    Enabling the .NET Framework 3.5 in Control Panel
    You can enable the .NET Framework 3.5 yourself through Control Panel. This option requires an Internet connection.
    To enable the .NET Framework 3.5 in Control Panel

    1. On the Start screen, type and then choose Control Panel. (To access the Start screen, press the Windows logo key on your keyboard.)
    2. Choose Programs, and then choose Turn Windows features on or off.
    3. Select the .NET Framework 3.5 (includes .NET 2.0 and 3.0) check box.
    You do not need to select the child items for Windows Communication Foundation (WCF) HTTP activation unless you are a developer who requires WCF script and handler mapping functionality.
    The following video shows how to do this:


    [​IMG]

    Troubleshooting
    security update 3005628.

    • No Internet Connection. Another common error occurs if your computer is not connected to the Internet, you are using a local network source, but the network location is inaccessible or doesn’t contain the right files. You may receive an error message like the following:
      “Windows couldn't connect to the Internet to download necessary files. Make sure that you're connected to the Internet, and click Retry to try again.”
      In this case, you should check your Internet connection and retry the operation. If you cannot connect to the Internet, you can enable the .NET Framework 3.5 .NET Framework 3.5 by using the Deployment Image Servicing and Management (DISM) command-line tool and specifying the installation media (ISO image or DVD or other external drive) you installed Windows 8 from.
      In Windows 8 or Windows Server 2012, open a Command Prompt window with administrative credentials (that is, choose Run as administrator), and use the following command.


    كود:
    DISM /Online /Enable-Feature /FeatureName:NetFx3 /All /LimitAccess /Source: installationMediaDrive:\sources\sxs[/B][/LEFT]
    [B][LEFT]
    


    Where:

    • /Online targets the operating system you're running (instead of an offline Windows image).
    • /Enable-Feature /FeatureName:NetFx3 specifies that you want to enable the .NET Framework 3.5.
    • /All enables all parent features of the .NET Framework 3.5.
    • /LimitAccess prevents DISM from contacting Windows Update (this mean you do not need Internet access).
    • /Source specifies the location of the files needed to restore the feature (for example, the D:\sources\sxs directory).
    For more information about DISM parameters and options, see How to Enable or Disable Windows Features.

    • Windows Server Update Services. An error can also occur if your administrator has configured your computer to use Windows Server Update Services (WSUS) instead of Windows Update for servicing. Ask your administrator to enable the policy to use Windows Update instead of WSUS.
    If these instructions do not correct the problem, download the paper Microsoft .NET Framework 3.5 Deployment Considerations from the Windows Dev Center for more extensive troubleshooting information

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