DISM

The feature update completed, Windows is working, and SFC reports no integrity violation; only DISM cannot obtain repair content. On an Insider build, this can occur when Windows Update has no repair payload matching the new build, so it does not by itself prove damage. Run DISM /Online /Cleanup-Image /CheckHealth, followed by /ScanHealth, from an elevated terminal. If both report no component-store corruption, no repair is required; keep the device current and check again after the next flight. If corruption is reported, review the DISM log and use a repair source matching the exact Insider build, edition, architecture, and language. Identify the correct image index before using /RestoreHealth with /Source and /LimitAccess. A public-release ISO may not match build 26340.9212. If no matching Insider ISO exists, submit the logs through Feedback Hub and use the next applicable flight or a supported in-place repair instead of forcing a mismatched source.