Enable Framework 3.5

The .NET Framework 3.5 is a crucial component for many applications to run on Windows. However, starting from recent Windows versions, this framework is not activated by default. Fortunately, there’s a way to enable it, even without an internet connection. Here’s how:

Offline Activation

1. Begin by creating a folder named “sxs”.
2. Copy the “sxs” folder from the Windows 11 ISO to your newly created folder.
3. Use the following script to enable the Netfx 3.5 in offline mode:

dism /online /enable-feature /featurename:NetFx3 /All /Source:"%~dp0sxs" /LimitAccess

Activation from a WIM File

1. Extract the Windows ISO into a designated folder. For this guide, we’ll refer to it as <DVD>.
2. Execute the following commands in Administrator Mode:

• Extract ISO into a folder => <DVD> for this sample
• use the following commands (Administrator Mode)
  • Md c:\mount
  • dism /mount-image /imagefile: »<DVD>\sources\install.wim » /index:1 /mountdir:c:\Mount
  • dism /image:c:\mount /enable-feature /featurename:NetFx3 /All /Source: »<DVD>\sources\sxs » /LimitAccess
  • dism /unmount-image /mountdir:c:\mount /commit