How To Enable .NET Framework 3.5 On a PC Without An Internet Connection

Enabling .NET Framework 3.5 on a PC without an Internet Connection

Procedure Steps

Mount an image for the version of Windows that you have installed.
In a Run command, enter "MMC", press [Enter], and navigate to File > Add/Remove Snap-in.
Add Group PolicyObject to the Selected snap-ins. In the Group Policy Wizard, verify the Group Policy Object is Local Computer and click Finish.
Expand Local Computer Policy > Computer Configuration > Administrative Templates > System.
In the Settings section, locate and right-click on "Specify settings for optional component installation and component repair" and select Edit.
Select the Enabled radio button.
Update the Alternate source file path with the drive information where the image is mounted. The needed files in the ISO are located in \sources\sxs (Example E:\sources\sxs).
Open Command Prompt and type “gpupdate /force” and press [Enter].
If prompted to reboot, ensure that the image is still mounted once the rebooted has completed.
Navigate to Control Panel > Programs and Features > Turn Windows features on or off and enable .NET Framework 3.5.