The Windows 10 Update Assistant downloads and installs feature updates on your device. Feature updates (for example, the Windows 10 May 2019 update, version 1903) offer new functionality and help keep your systems secure. You’ll get these updates automatically after you download the Update Assistant.
If you don’t want to wait for an automatic update, or if you want to check for quality updates (which are more frequent and include small fixes and security updates), you can update Windows 10 yourself.
If you’re an IT professional, you can defer updates. Go to Windows 10 servicing options.
Need to know which version of Windows 10 is running on your device? You can check quickly and easily. In the search box on the taskbar, type winver, then select winver from the list of results.
Need to know about required disk space, error codes, removing an installed update, or other update questions? Find more help at Windows Update: FAQ.