



Installation often fails (errors like or 0x80070490 ) if the .cab file version does not exactly match the installed version of Windows. For example, a .cab file from a Windows 10 ISO may not work on Windows 11. If you're running into issues, verifying your source media is the most important step. Installation often fails (errors like or 0x80070490 ) if the
| Error | Likely Cause | Solution | |-------|--------------|----------| | 0x800f081f | Source files not found. | Verify CAB path is correct, and it is not corrupted. | | 0x800f0906 | DISM could not download from Windows Update. | This happens if the on-demand feature is configured to attempt online first. Use the /LimitAccess switch with DISM. | | 0x80070032 | Wrong architecture (e.g., amd64 CAB on x86 OS). | Download the correct x86 version instead. | | Error: 0x800f0954 | WSUS/Group Policy blocking optional features. | Temporarily set “Specify settings for optional component installation and component repair” to – or use /Source to force local CAB. | | Error | Likely Cause | Solution |
To force local source and ignore WSUS:
The naming convention follows the standard Windows Componentization format: microsoft-windows-netfx3 : Identifies the package as .NET Framework 3.5. 31bf3856ad364e35 : This is the Public Key Token | This happens if the on-demand feature is