If you run into problems updating your device, including problems with previous major updates, see common fixes at Troubleshoot problems updating Windows 10, or use Fix Windows update issues to step you through the troubleshooting process. If version 21H1 isn't offered automatically through Check for updates, you can get it manually through the Update Assistant. If you want to install the update now, select Start > Settings > Update & Security > Windows Update, and then select Check for updates. (To check whether you're already running the May 2021 Update, select View update history on the Windows Update settings page.) Also note the following: After that, your device will be running Windows 10, version 21H1. You'll then need to restart your device and complete the installation.
Choose a time that works best for you to download the update. When the Windows Update is ready for your device, it will be available to download from the Windows Update page in Settings.
