If you can't sign into your Microsoft account, most issues can be identified by our sign-in helper tool. The tool will ask you to enter the email address or mobile phone number you're trying to sign in with and check the details you provide.

Many users find that using an external keyboard with keyboard shortcuts for Outlook helps them work more efficiently. For users with mobility or vision disabilities, keyboard shortcuts can be easier than using the touchscreen and are an essential alternative to using a mouse.

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

A Blue cloud or a cloud with an arrow icon next to your OneDrive files or folders indicates that the file is only available online. Online-only files don’t take up space on your computer. You can’t open online-only files when your device isn’t connected to the Internet. Learn more about OneDrive Files On-Demand.

An array formula (one that spans multiple cells) can do calculations on rows and columns of cells where you might otherwise need to use several formulas. For example, you can count the number of characters that are contained in a range of cells, sum only numbers that meet certain conditions (such as the lowest values in a range or numbers that fall between an upper and lower boundary), and sum ...

The following disclaimer applies if you install Windows 11 on a device that doesn't meet the minimum system requirements: This PC doesn't meet the minimum system requirements for running Windows 11 - these requirements help ensure a more reliable and higher quality experience.

That verification method isn’t working right now: Sometimes the block may be tied to the verification method you are using.Try using another verification method connected to your account. For example, if you are using SMS to verify yourself and are hitting a block, try using an alternate email that is connected to the account to receive your authorization code.

Discover the latest features in Office 2021, including new ways to create content, manage data, and communicate effectively.

Try these troubleshooting steps if Microsoft Store does not launch in Windows 10.

How to use Transpose in Excel to rotate columns and rows to rearrange your worksheet data.