For help installing an update successfully, see the solution under each problem description.
Problem: End User License Agreement (EULA) Not Accepted
Solution: Check for updates again and wait while you install updates. You will be asked to accept the EULA before any updates with a EULA can be installed.
Problem: Not Enough Disk Space
Solution: To make more space available, run the Disk Cleanup tool or uninstall any programs that you don’t use. For directions, see Help and Support on your computer.
Problem: Automatic Updates is currently installing updates
Solution: Please wait until Automatic Updates is complete and then check your update history. At that time, if the update has failed to install, you can try installing it from the website.
Note: To view Automatic Updates progress, click the updating icon in your System Tray.
I've removed the AHKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion
\WindowsUpdate\Auto Update/RBOOTREQUIRED but thr problem still exists.