The process will take a minute or two. Once it shows "The operation completed successfully", you can close the command prompt. You may be prompted to restart your computer.
/online : Targets the operating system currently running on your machine.
Get-WindowsOptionalFeature -FeatureName "NetFx3" -Online
Dism /online /enable-feature /featurename:NetFX3 /All /Source:E:\sources\sxs /LimitAccess Use code with caution. Net Framework 3.5 Offline Installer Windows 10 64 Bit
Once you have downloaded the offline installer, follow these steps to install .NET Framework 3.5:
Dism /online /enable-feature /featurename:NetFX3 /All /Source:D:\sources\sxs /LimitAccess Use code with caution. Understanding the Command Parameters:
While the "Turn Windows Features on or off" GUI (accessed by typing optionalfeatures in the Start Menu) is the most user-friendly method, it forces the computer to check Windows Update by default. The process will take a minute or two
/LimitAccess : Prevents DISM from reaching out to Windows Update over the internet.
/enable-feature /featurename:NetFX3 : Specifies that the .NET Framework 3.5 feature should be enabled.
/enable-feature /featurename:NetFX3 : Tells Windows to enable the .NET Framework 3.5 package. /online : Targets the operating system currently running
A progress bar will appear. Once it reaches 100%, the feature is enabled. Restart your computer if prompted. Microsoft Learn Method 2: Windows Features Dialog (Limited Offline Support)
Air-gapped computers, secure server rooms, or machines in remote locations cannot reach Microsoft servers.
To confirm that .NET Framework 3.5 is correctly activated on your system without launching your third-party software, follow these steps: Press Windows Key + R to open the Run dialog box.