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Microsoft Authenticator backs up your account credentials and related app settings, such as the order of your accounts, to the cloud. You can then use the app to recover your information on a new device, potentially avoiding getting locked out or having to recreate accounts.

Controller serial numbers are 14 characters long and don’t include dashes. Your controller serial number may not be recognized if you’ve never connected your controller, or if you connected for the first time within the last 48 hours.; If you have the Xbox Elite Wireless Controller Series 2, the 14-character serial number is in the lower center on the back of the controller.

Find out how to get a DVD player app, add-on, or plug-in, or whether you can upgrade your edition of Windows to add DVD playback.

Review the warranty terms, check your warranty status, and learn about the protection plans for your Microsoft device or accessory.

If you're unable to open and view the notebook in OneNote for the web, the source of the sync problem is likely with your server. If your notebook is stored on OneDrive, check our Service Status page for any known interruptions or outages. If your notebook is stored on SharePoint, you'll need to contact your administrator to report and troubleshoot the problem.

As we share new features for the Phone Link , some of them are dependent on the operating system or type of device you have. Please check the list below to determine if your device is eligible for these experiences.

Learn how to manage the online safety and privacy settings on the Xbox console for you and every member of your family group.

Here are a few different ways to find help for Windows. Search for help - Enter a question or keywords in the search box on the taskbar to find apps, files, settings, and get help from the web.

Surface devices get updates through Windows Update. Find out what's included in each update and how to manually update your Surface. Select your device from the following list to see its update history.