Windows 10 May 2021 Update now generally available

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What you need to know

  • The Windows 10 May 2021 Update is rolling out now.
  • The update doesn't include any major changes but does include some new business-critical additions.
  • The Windows 10 May 2021 Update also comes with the new Microsoft Edge preinstalled.

Microsoft released the Windows 10 May 2021 Update today, which is also known as Windows 10 version 21H1. While it is a feature update, the Windows 10 May 2021 is relatively small in terms of new features and noticeable changes. Microsoft designed the Windows 10 May 2021 Update to be minor since a much more significant update, which is codenamed Sun Valley, is on the way later this year.

The biggest change in this Windows 10 update is that it comes preinstalled with the Chromium-based Microsoft Edge rather than the legacy version of Edge. The new Edge has been available for over a year, but this is the first time that it's been preinstalled in Windows 10.

The Windows 10 May 2021 Update also allows PCs with multiple Windows Hello peripherals to set a default device.

Here's everything that's new with the update. We'll update this list as Microsoft releases the official release notes:

  • Windows Hello multicamera support to set the default as the external camera when both external and internal Windows Hello cameras are present.
  • Windows Defender Application Guard performance improvements including optimizing document opening scenario times.
  • Windows Management Instrumentation (WMI) Group Policy Service (GPSVC) updating performance improvement to support remote work scenarios.
  • Removes the Microsoft Edge Legacy desktop application that is out of support and installs the new Microsoft Edge.

Along with the short list of new features, the update includes several bug fixes and general improvements.

You can grab the Windows 10 May 2021 Update now through the Windows 10 Settings app, the Media Creation Tool (opens in new tab), or the Upgrade Assistant (opens in new tab). The update will roll out in waves, so you may not see it yet through Windows Update.

Sean Endicott
News Writer and apps editor

Sean Endicott brings nearly a decade of experience covering Microsoft and Windows news to Windows Central. He joined our team in 2017 as an app reviewer and now heads up our day-to-day news coverage. If you have a news tip or an app to review, hit him up at (opens in new tab).

  • Didn't they already replace Edge with Chromium Edge in 20H2?
  • Yes, they did, but 21H1 also removes the old Edge instead of just hiding it. Though older versions also do that through the latest cumulative updates, so it's basically a way to pad the tiny changelog.
  • Not an update to get excited about, that's for sure. I miss the big 6-monthly updates from the earlier days of Windows 10!
  • SUN VALLEY is coming bud
  • Wanna repeat another "October 2018 Update" incident?
  • It isn't available for me right now. I can't tell if it's because of compatibility issues or what, but it's funny how 2004 appeared to me immediately, but I have wait for this and had to wait for 20H2, which are smaller updates. Anyway, I'll just wait.
  • It's weird cos my newest machine doesn't have the update available in Windows Update but my laptop from 2013 running Windows 10 has got it ready to download!
  • It isn't actually weird because Microsoft stage the rollouts so that servers aren't overloaded and issues can be detected before affecting everyone and it isn't necessarily the same machines included in the same stages every time.
  • If you're not bothered then, yeah, just wait, but you can also use the Update Assistant to force an install and I'm fairly sure that that will flag any compatibility issues.
  • Yeah, I'm not bothered. I'll just update when it hits.
  • In build 21322, MS fixed a bug that caused deleted icons to reappear. I wonder if that build got rolled into this update. Does anyone know if there's a way to tell?
  • After updating... it does not contain the fix. grrrrr
  • Is it just for me or does anyone else have the installed on date as 27-Mar-2021?
  • So what happened to the cumulative update concept? You know, that thing where a new release covers all the interim ones you might not have gotten since the last release? My Surface Pro 7, which hasn't seen as much use for some reason during the last year, is doing the update dance. Got some updates, need to reboot. Oh, look, now there are more updates, need to reboot. Darned if there aren't more updates, lets reboot again. Congrats, got them all, you're up to date. What? 21H1? Oh, not for you. Wouldn't want to risk that on MS's own hardware. My ancient HP desktop though, 21H1? Yea, right in WU. Get right on that. 2 minutes, we're done. Anything else? (If it messed up, we could blame it on HP.)
  • It's almost like Microsoft let different machines get updates earlier and later at different times rather than the same people being at the front or back of the queue every time. How unreasonable. If you can't wait, use the Update Assistant that Microsoft provide explicitly for that purpose, among others.
  • Got the update. Seems faster.
  • 👍 was looking for the seems faster post lol
  • It took about 2-3 minutes to download and install. Is relatively fast.
  • Same here , it's as if the main update is no bigger than a weekly update lol so not expecting much change
  • Update without UI is not an update, that's like a major security update.