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Documentation > Products > Virtual Machines > Error Occurs and Source Files Not Found during .NET Framework 3.5.1 Installation in Windows 2012

Windows 2012 .NET Framework 3.5.1 Installation Error and Source Files Not Found

Problem Description:

An error of .NET Framework 3.5.1 installation in Windows Server 2012 is reported, and the error is as shown below:

Problem Causes:

The installation source file cannot be found.

Solution:

  1. Locate PowerShell from the start menu and right click to select [Run as Administrator].

  2. Press [Enter] to execute after entering the following script.

1.Set-ItemProperty -Path 'HKLM:\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU' -Name UseWUServer -Value 0

2.Restart-Service -Name wuauserv

3.Install-WindowsFeature Net-Framework-Core

4.Set-ItemProperty -Path 'HKLM:\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU' -Name UseWUServer -Value 1

5.Restart-Service -Name wuauserv

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Update Time:2019-08-28 21:38:33