Download and install or reinstall Microsoft 365 or Office 2021 on a PC or Mac. Set up Office apps and email on a mobile device. Small business help and learning. Learn how to download and install apps you need from your Microsoft 365 business subscription.

If some Windows functions aren't working or Windows crashes, use the System File Checker to scan Windows and restore your files. Though the steps below might look complicated at first glance, just follow them in order, step-by-step, and we’ll try to get you back on track. Run the System File Checker tool (SFC.exe)

Some Office 2019, Office 2016, and Office 2013 products come with a product key. If yours did, before installing Microsoft 365 for the first time, sign in with an existing or new Microsoft account and enter your product key at office.com/setup. Redeeming your key is what links your account with Microsoft 365 so you only have to do this once.

Installing Windows 11 on devices that don't meet minimum system requirements. If you changed your hardware in order to upgrade to Windows 11 and the system is not recognizing the change in a timely manner, this article explains how to initiate the assessment manually.

For Xbox Series X|S, we’ve streamlined the Xbox Wireless Controller for comfort, performance, and instant sharing. The controller also works great with Xbox One, PC, and cloud gaming devices. For info about remapping your controller’s buttons, visit: Configure an Xbox Wireless Controller.

With Word you can: Create a document from scratch or from a template. Add text, images, art, and videos. Research a topic and find credible sources. Access your documents from a computer, tablet, or phone via OneDrive. Share your documents and collaborate with others. Track and review changes.

Setting up your controller for cloud gaming. Controllers that are identified as Official Xbox and Designed for Xbox are optimized for the best cloud gaming experience. Verified controllers will work for cloud gaming but may be less optimal. For the best performance, update your controller to the latest firmware.

Get to know your controller and how to customize it to your gaming style. The Xbox Elite Wireless Controller Series 2 is compatible with all Xbox One and Xbox Series X|S consoles. Most Xbox accessories are compatible with the controller, including headsets, Play & Charge Kits (Elite only), and chatpads.

Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

Learn how to add user accounts in Windows 10 and Windows 11. With an account, each person has separate files, browser favorites, and a private desktop.