Microsoft NET Framework 3.5 needs to be installed for this installation to continue
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First, you can check if the component is already installed on your device. Go to Control Panel > Programs > Turn Windows features on or off, verify if .NET
Framework 3.5 checkbox is selected and then proceed with the software installation.  If the error persits, we will have to force the installation with the Windows command prompt (CMD). Prior to this step, we need to have the .NET Framework installation package in our device, which you can typically find on the 'Components' folder of the software we are trying to install (if you can't find in, it is also available for direct download on the Microsoft's website). For now, you can leave the installation package on your local disk folder (C:\). Go to Start Menu and type 'cmd' and open it with administrator privileges. Copy the following command on the prompt and execute it: Dism.exe /online /enable-feature /featurename:NetFX3 /source:C:\
/LimitAccess The prompt will display the installation progress. Once it finishes, run the software setup again and that's it. The content published here is the exclusive responsibility of the authors. DAKTRONICS DOES NOT PROMISE THAT THE CONTENT PROVIDED HEREIN IS ERROR-FREE OR THAT ANY DEFECTS WILL BE CORRECTED, OR THAT YOUR USE OF THE CONTENT WILL PROVIDE SPECIFIC RESULTS. THE CONTENT IS DELIVERED ON AN "AS-IS" AND "AS-AVAILABLE" BASIS. ALL INFORMATION PROVIDED IN THIS ARTICLE IS SUBJECT TO CHANGE WITHOUT NOTICE. DAKTRONICS DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING ANY WARRANTIES OF ACCURACY, NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. DAKTRONICS DISCLAIMS ANY AND ALL LIABILITY FOR THE ACTS, OMISSIONS AND CONDUCT OF YOU OR ANY THIRD PARTIES IN CONNECTION WITH OR RELATED TO YOUR USE OF THE CONTENT. ADJUSTMENT, REPAIR, OR SERVICE OF THE EQUIPMENT BY ANYONE OTHER THAN DAKTRONICS OR ITS AUTHORIZED REPAIR AGENTS MAY VOID THE EQUIPMENT WARRANTY. YOU ASSUME TOTAL RESPONSIBILITY FOR YOUR USE OF THE CONTENT AND ANY LINKED CONTENT. YOUR SOLE REMEDY AGAINST DAKTRONICS FOR DISSATISFACTION WITH THE CONTENT IS TO STOP USING THE CONTENT. THIS LIMITATION OF RELIEF IS A PART OF THE BARGAIN BETWEEN THE PARTIES. The above disclaimer applies to any property damage, equipment failure, liability, infringement, or personal injury claim arising out of or in any way related to your use or application of the content, whether such claim is for breach of contract, tort, negligence or any other cause of action. RuntimeDo you want to run apps? The runtime includes everything you need to run existing apps/programs built with .NET Framework. Download .NET Framework 3.5 SP1 Runtime If you're using Windows 10, Windows Server 2016, or Windows Server 2019, we recommend installing .NET Framework 3.5 through the control panel.
After you install security update 2966827 or 2966828 (described in Microsoft Security Bulletin MS14-046) for the Microsoft .NET Framework 3.5, and then you try to enable the
optional Microsoft .NET Framework 3.5 feature in Windows Features for the first time, the feature does not install. You may notice this failure if you "stage" the installation before you add the Microsoft .NET Framework 3.5 feature. When this problem occurs, you may receive an error message that resembles one of the following. Error code Error messages 0x800F0906 The source files could not be downloaded. 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. Installation of one or more roles, role services, or features failed. 0x800F081F The source files could not be found. This problem occurs because security updates 2966827 and 2966828 for Microsoft Security Bulletin MS14-046 for the .NET Framework 3.5 require metadata that is added to the
system only if the Microsoft .NET Framework 3.5 feature is enabled on the system. Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. The issue is now resolved by update 3005628. The workaround that is provided in the next section still unblocks customers, depending on their
situation. To resolve the issue, install update 3005628. To work around this issue, use one of the following workarounds, as appropriate for your situation:
More InformationThe information in this article applies to:
Need more help?Why NET Framework 3.5 is not installing?Here we show you how to solve this issue. First, you can check if the component is already installed on your device. Go to Control Panel > Programs > Turn Windows features on or off, verify if . NET Framework 3.5 checkbox is selected and then proceed with the software installation.
How can I tell if .NET Framework 3.5 is installed or not?Use Registry Editor. From the Start menu, choose Run, enter regedit, and then select OK. (You must have administrative credentials to run regedit.). In the Registry Editor, open the following subkey: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full. ... . Check for a REG_DWORD entry named Release.. Can you install .NET 3.5 if 4.0 is already installed?Yes. You can install and run multiple versions of the . NET Framework on a computer. You can install the versions in any order.
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