Windows Server R2 or 2016 cannot install. Net 3.5.1

Windows Server R2 or 2016 cannot install. Net 3.5.1 Problem Description

Using Windows Server R2 or the Windows Server 2016 system, it was found that the. NET 3.5.1 times error was installed, and the error content was as follows:

Cause analysis

The installation source file could not be found.

Solutions

Installation can be done with the following PowerShell script:

2. From the Start menu, locate PowerShell, right-click to select Run as Administrator.

3. Enter the following script and return to execute:

   2. Set-ItemProperty -Path ‘HKLM:\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU‘ -Name UseWUServer -Value 0
   4. Restart-Service -Name wuauserv
   6. Install-WindowsFeature Net-Framework-Core
   8. Set-ItemProperty -Path ‘HKLM:\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU‘ -Name UseWUServer -Value 1
   10. Restart-Service -Name wuauserv

Windows Server R2 or 2016 cannot install. Net 3.5.1