Click ‘Update & Security’ then ‘Troubleshoot’. To do this, click the Start menu, then click the cog icon on the left, which will open up the Settings window. When the updates finish installing, you should restart your computer. Find the button that says Install updates and click it. Then click Windows Update to open that window. When the Control Panel opens, select System and Security (or Security in some versions). How do I fix failure configuring Windows Update reverting changes? Can I close my laptop while shutting down?.Is it safe to leave a laptop updating overnight?.Why does the Windows Update take so long?.What happens if I power off during updates?.How long does Failure configuring Windows updates reverting changes take?.How do you fix Windows update problems?.How do I fix failure configuring Windows Update reverting changes?.