The command prompt will show a progress bar. Once it reaches 100%, you should see the message: "The operation completed successfully."
When you attempt to install this feature on a machine without an active internet connection, Windows Update will fail, throwing errors like 0x800F0906 or 0x800F081F .
If you prefer managing system components through PowerShell, you can achieve the same result using the Deployment Image Servicing and Management cmdlets.
If you have an internet connection, you don't necessarily need the CAB file. You can enable it via: cab file for .net framework 3.5
Once you have acquired the .cab file, follow these step-by-step instructions to install it using the Windows Command Prompt. Step 1: Prepare the File Path
Right-click the ISO file and select "Mount" to make it visible as a virtual drive.
Open the Start menu, type , right-click Command Prompt , and select Run as administrator . The command prompt will show a progress bar
Trying to install a 64-bit (amd64) CAB file on a 32-bit (x86) Windows installation, or vice-versa.
This is the most reliable method if you cannot use Windows Update.
Method 1: Extracting from Windows Installation Media (Recommended) If you have an internet connection, you don't
In the window, look at the very top of the list.
When a machine lacks an active internet connection, the standard Windows Update installation method will fail with errors like 0x800F0906 or 0x800F081F . In these disconnected environments, using a Cabinet (CAB) file is the most reliable, efficient, and lightweight method to enable this critical feature. What is a .NET Framework 3.5 CAB File?