Fix Error code: 0x80070001, Windows cannot install required files. Make sure all files required for the installation are available.

Fix Windows could not complete the installation, To install Windows on this computer, restart the installation. by following the procedure laid down in this post.

Fix #2: Install Windows updates. Oftentimes, an outdated Windows system is the cause of malfunctioning apps and Microsoft services on your computer.

If you use this Microsoft workaround, you can still install Windows 11 on an unsupported computer.