September preview: It’s time to patch Windows again.

And on this month’s Patch Tuesday event day, Microsoft will release a cumulative update for Windows 10 systems later today. As always, all Windows 10 feature updates are cumulatively updated, but for the average user, only mainstream feature updates are available.

September preview: It's time to patch Windows again.

Last week, Microsoft released an optional update for Windows 10 Version 1903 to Version 2004, which was scheduled to be released at the end of August. The cumulative update released today will also include additional security fixes, which are expected to be available for many components, including Windows Kernel, Microsoft Edge Internet Explorer, and script engines.