Windows 10 Feature Update 2020H1 (version 2004) is being rolled out

The Windows 10 spring update is currently being rolled out by Microsoft

Microsoft is currently rolling out the spring update for Windows 10 (2020H1 / Version 2004). If you agree to the function update and boot, the computer will not be usable for at least 30 minutes due to the update and will boot several times independently. With older systems (especially notebooks) this process can take much longer. Please schedule these update times in your workflow. New images for installation will be made available on the SWD for licensees in the next few days.

Microsoft maintains a list of known issues (and some workarounds) on the page, opens an external URL in a new window