Open and note the Drive Letter (e.g., D: , E: , or G: ) of the mounted drive. Open Command Prompt as Admin
Type the following command, replacing D: with your actual mounted drive letter: dism /online /enable-feature /featurename:NetFx3 /all /limitaccess /source:D:\sources\sxs
This issue often surfaces when your system configuration blocks the internal Windows Update frameworks from executing background verification tasks.
While installing an older Windows component can seem daunting, using the DISM command-line tool with a local source file is a clean, reliable, and safe process. By choosing between the ISO or the .cab method, you can get your games and applications running in just a few minutes—no internet connection required.
Select the file (~231 MB) and save it.
Click . Windows will search for the necessary system files and apply them to your OS environment. Troubleshooting Common Installation Errors Error Code 0x800F0906 or 0x800F081F
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The progress bar will reach 100%. You should see the message: "The operation completed successfully."
) often fail or require an internet connection to "verify" the installation. Microsoft Learn
Many older apps (games, accounting software, CAD tools) require .NET Framework 3.5. Installing it online via Windows Features often fails due to slow downloads or corporate restrictions. The offline method is faster and more reliable.
