Windows 11 Insider Preview 10.0.26120.2122 (ge_release_upr) unable to update

Windows includes a built-in troubleshooter for resolving update issues:
1.Go to Settings.
2.Navigate to Update & Security > Troubleshoot > Additional troubleshooters.
3.Click on Windows Update and run the troubleshooter.

First things first—make sure your internet connection is stable. A flaky connection can interrupt downloads. Try browsing or streaming something briefly to confirm that all is good on your end.