Device encryption helps protect your data and it's available on a wide range of Windows devices.

Learn more about how to fix problems with the Windows Start menu, and what to do if the Start menu won't open.

Structured references make it easier to use formulas with Excel tables by replacing cell references, such as C2:C7, with predefined names for the items in a table.

Learn how to use Feedback Hub to report problems or send suggestions to Microsoft.

How to change your product key to fix activation errors that can occur if you own and install multiple one-time purchases of Office..

Open Device Manager. By pressing submit, your feedback will be used to improve Microsoft products and services.

If you get an email about unusual activity on your Microsoft account, or if you’re worried that someone else might have used your account, go to the Recent activity page.You’ll see when your Microsoft account was signed in during the last 30 days, along with any device or app-specific info.

Welcome to Sticky Notes! We're still the best way to write quick notes on your Windows desktop, but now you can also take your sticky notes with you, allowing you to capture, find, and use your notes across apps and your favorite devices.

In Outlook, the black color theme includes dark mode, which provides a black background (instead of white) for the message window. You can switch to a white background for the message window if you prefer.

Learn how to create an Xbox profile. You’ll need a Microsoft account to create an Xbox account. A Microsoft account is not the same thing as an Xbox account, although you can use the same email address for both.