Disclaimer: This article focuses on troubleshooting Windows features. Always ensure you have appropriate backups before modifying system files. If you'd like, I can: Show you where to download the from Microsoft.
Older games or industrial software that specifically requires .NET 3.5.
Run the following command (replace D: with your actual drive letter):
Look at the very top of the list for .
DISM /Online /Enable-Feature /FeatureName:NetFx3 /All /LimitAccess /Source:C:\sxs Use code with caution.
The exact filename includes a long string of numbers and letters specific to your system architecture, such as microsoft-windows-netfx3-ondemand-package~31bf3856ad364e35~amd64~~.cab for 64-bit systems.
Websites offering "free downloads" of Microsoft system files often contain:
Open the virtual drive and navigate to the \sources\sxs\ folder.
Method 1: Extract from Official Windows Installation Media (Recommended)