| Error Code | Meaning | Fix | | :--- | :--- | :--- | | | .NET already installed or partially installed | Uninstall older 4.x versions via Control Panel, clean temp files ( %temp% ), reboot, retry. | | 0x800f0906 | Missing Windows Update prerequisites | Download and install KB2919355 (Windows 7 SP1 update rollup). | | 0x80070643 | Corrupt Windows Installer | Run msiexec /unregister , then msiexec /regserver . Restart the installer service. | | 0x80092004 | Certificate or SHA-2 issue | Reinstall KB4474419 (SHA-2 signing update). Ensure your system date/time is accurate. | | Hang at "Applying patches" | Antivirus conflict or disk I/O error | Boot Windows 7 into Safe Mode with Networking and run the installer there. |

Yes, using tools like or Microsoft Deployment Toolkit (MDT) . Extract the offline installer ( /x:path command) and add the resulting MSI files to your Windows image.

Follow this guide exactly: verify your SP1 status, install the three prerequisite KBs, download the official NDP472 executable from Microsoft, run as administrator, and reboot. In less than 20 minutes, your Windows 7 machine will be ready to run modern enterprise software, games, and developer tools.

Some older antivirus programs on Windows 7 can falsely flag runtime code generation. Disable real-time protection temporarily.