Method 1: Extracting from Windows Installation Media (Recommended)
Disclaimer: The information above is accurate for Windows 10 and 11 as of 2026. Always ensure you are using the installation media corresponding to your current Windows version. If you'd like, I can: Show you how to create a bootable USB with this file Explain how to fix errors with the DISM command
The command prompt will display a progress bar. Once it reaches 100%, you should see the message: "The operation completed successfully." To double-check the installation: cab file for .net framework 3.5
If DISM itself is corrupted:
This is the most common method for both live systems and offline images. Microsoft Learn Once it reaches 100%, you should see the
Unlike newer versions, .NET 3.5 is not installed by default. While you can install it via the Control Panel, this often fails if your computer lacks internet access or is restricted by group policies. In such cases, you need the (also known as the Side-by-Side or SxS component).
The Microsoft .NET Framework 3.5 is a foundational component for many legacy and specialized software applications on Windows operating systems, including Windows 10 and Windows 11. Despite the advancement of newer frameworks, many developers and IT administrators still encounter scenarios where this specific version is required. In such cases, you need the (also known
DISM /Online /Enable-Feature /FeatureName:NetFx3 /All /LimitAccess /Source: Parameters: : Enables all parent features of the specified feature. /LimitAccess
Security and system stability depend on using an authentic CAB file that matches your specific operating system build.
By following the methods and troubleshooting tips outlined in this article, you should be able to successfully install, update, or repair the .NET Framework 3.5 using a CAB file. If you're still experiencing issues, don't hesitate to seek assistance from Microsoft support or other trusted sources.