The continues failure of Win 10 update with (0x80070643) error was too annoying and I was a bit skeptical about the solutions to edit the partition size manually through command prompt. This method is safe and using the recovery disk. I created a recovery disk from the same PC using win media creation tool and urn the update. It did took some indeed, but was easy.
thank you for the step by step procedure.
Br
Hafzal