Windows 10's light desktop background.

The latest version of Windows 10 is the May 2021 Update, version “21H1,” which was released on May 18, 2021. Microsoft releases new major updates every six months.

These major updates can take some time to reach your PC since Microsoft and PC manufacturers do extensive testing before fully rolling them out. Let’s take a look at what’s included in the latest version, how to find out what version you’re running, and how you can skip the wait and get the most recent version if you don’t already have it.

The Latest Version Is the May 2021 Update

The latest version of Windows 10 is theย May 2021 Update. which was released on May 18, 2021. This update was codenamed “21H1” during its development process, as it was released in the first half of 2021. Its final build number is 19043.

Windows 10’s May 2021 is a small update that focuses on bug fixes, just like the October 2020 Update was. It does have a few other small changes, including better multicamera support for Windows Hello, which lets you sign in to your PC with just your face—if your PC has a supported camera.

How to Check if You Have the Latest Version

To see which version of Windows 10 you have, open your Start menu, and then click the gear-shaped “Settings” icon to open the Settings app. You can also fire up the app by pressing Windows+I.

Opening Windows 10's Settings app

RELATED: How to Find Out Which Build and Version of Windows 10 You Have

Head to System > About in the Settings window, and then scroll down toward the bottom to the “Windows Specifications” section.


A version number of “21H1” indicates you’re using the May 2021 Update. This is the latest version. If you see a lower version number, you’re using an older version.

Note: 21H1 is a smaller update, so the “Installed On” date may not be updated here and may show a date in 2020 instead of 2021. Rest assured that, if the Settings app says you’re using version 21H1, you have the latest version.

For example, if you see “2004” here instead, you’re using the May 2020 Update.

Windows 10's Settings app showing version 20H2.
In the screenshot, the PC is running Windows 10 version 20H2.

If you see a higher version number than 21H1 on your system, you’re likely running an unstable Insider Preview version of Windows.

How to Update to the Latest Version

When Microsoft provides the update to your PC, it automatically installs itself. But Microsoft doesn’t offer new Windows updates to all PCs at once. Instead, Microsoft rolls them out slowly over time, after both Microsoft and the various PC manufacturers check to see if they cause problems with different hardware configurations. If your PC doesn’t get the update, Microsoft isn’t entirely confident it will work on your hardware just yet.

However, you can override this and choose to install the update anyway. After all, you can always downgrade back to your current version of Windows 10 if you have any problems, assuming you choose to do so within ten days after upgrading. There’s some risk here, but you are still installing a stable operating system update.


To install the update anyway, you can now head to Settings > Update & Security > Windows Update and click the “Check for Updates” button. If a stable version of Windows 10 is available, Windows Update may offer to download and install it—even if it hasn’t been rolled out to your PC yet. Look for a “Download and install now” link below a notice about a “Feature Update” being available for your PC.

Click "Download and Install" under the Feature Update section.

You can also visit Microsoft’s Download Windows 10 page to update. Click the “Update now” button to download the Update Assistant tool, and then run the tool. It will upgrade your PC to the latest version of Windows 10—even if the update wasn’t offered to you via Windows Update. The tool may still refuse to install the update if some issues need to be fixed with your PC’s configuration first. You can either wait or try to troubleshoot the problem yourself.

RELATED: How to Install Windows 10's May 2021 Update (21H1)

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Chris Hoffman is Editor-in-Chief of How-To Geek. He's written about technology for over a decade and was a PCWorld columnist for two years. Chris has written for The New York Times, been interviewed as a technology expert on TV stations like Miami's NBC 6, and had his work covered by news outlets like the BBC. Since 2011, Chris has written over 2,000 articles that have been read nearly one billion times---and that's just here at How-To Geek.
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