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