https://wccftech.com/how-to-fix-windows-11-error-code-0x8007007f/

Microsoft surprised everyone with a slightly early release of Windows 11 this week. Similar to Windows 10, the new operating system can also be installed through Microsoft's Update Assistant, Windows Update, or using the ISO files.

However, the installation process is getting stuck for some early adopters, showing Windows 11 error code 0x8007007f. One user reported on Reddit getting this error repeatedly around 71% through the installation process. One way to address this issue is to reboot and start the process as admin, as recommended by several users: