Anyone else having issues with this Windows 11 update?

Hi George,

The error code 0x80070306 indicates a “handle is invalid” issue, which usually points to corruption in the servicing stack or a problem with the update payload itself. Since this is a cumulative security update (KB5068861) for Windows 11 build 26100.7171, the first step is to ensure the servicing stack update (SSU) is current, because a mismatched SSU often causes repeated failures. Run DISM /Online /Cleanup-Image /RestoreHealth followed by sfc /scannow to repair component store corruption. If that passes clean, manually download KB5068861 from the Microsoft Update Catalog and install it using wusa.exe to bypass Windows Update. If the manual install fails with the same error, check C:\Windows\Logs\CBS\CBS.log and C:\Windows\WindowsUpdate.log for entries around the failure time to confirm whether the issue is tied to a corrupted payload or a servicing stack mismatch. If corruption persists even after repair, the only reliable path is to wait for Microsoft to release a refreshed package or servicing stack fix, as forcing the update through unsupported methods risks destabilizing the OS.

I hope you found something useful here. If this helps resolving your issue, please accept the answer to let me know it's cleared.

Harry.