If your Windows Update process hits the wall with error code
8024200d then you may find really strange solutions, including suggestions to restart all services and boot system in a clean mode.
The truth is that error
8024200d means nothing more than the fact that Windows Update downloaded a malfunctioned version of update. And this is the only reason on why it is not able to install it.
And the solution is as simple as -- install it manually by yourself.