Windows 10 April 2018 Update
Microsoft’s big Windows update—not a “spring” update but the more boringly named “Windows 10 April 2018" update—arrives today for eager Windows users who manually trigger the update for their desktops and laptops.
Windows 10 April 2018 Update: the 10 best new features by theverge.com
Microsoft’s latest Windows 10 update is arriving for PCs and tablets today. Like the previous Fall Creators Update, it’s full of small features that improve Windows 10 without dramatically changing the platform. Microsoft is only adding one major feature with this update, and it’s the Timeline feature that lets you resume where you left off across multiple Windows 10 machines.
Microsoft is finishing work on Windows 10’s next update, which will probably be named the “Spring Creators Update” and was codenamed “Redstone 4”. This is Windows 10 version “1803”, and it will launch sometime in April 2018.
Download and install the Windows 10 April 2018 Update using the Update Assistant
After April 30 you can upgrade to the final version using the Update Assistant tool, go to the Windows 10 Update Assistant webpage and choose 'Update now' button.
The tool will download, then check for the latest version of Windows 10, which includes the Spring Creators Update.
Once downloaded, run the updater, then select 'Update Now'. The tool will do the work. Your PC will restart a few times, so save any open files first. Your PC will update to the Spring Creators Update, all your data, Programs and settings will be unchanged.
Note, this will only work once the Spring Creators Update is officially released.