How to use the IF function in Excel to make logical comparisons between data values.

Select Start , then select Settings > Personalization > Themes.Choose from a default theme or select Get more themes in Microsoft Store if you want to download new themes with desktop backgrounds that feature cute critters, breathtaking landscapes, and other smile-inducing options.

You can repair some apps and programs if they're not running correctly. Note that you won't see repair, change, or modify options for all apps and programs.

Internet Explorer 11 support ended on June 15, 2022. We recommend you use Microsoft Edge for a faster, more secure and more modern web browsing experience.

Find out how to submit a request for a refund for a purchase of digital Xbox content.

Learn how to install Office 2013 on your PC or Office for Mac 2011.

If you need help with Outlook.com, you can read our self-help content, or get support via email.

Master the art of Excel formulas with our comprehensive guide. Learn how to perform calculations, manipulate cell contents, and test conditions with ease.

Search across time to find the content you need. Then, re-engage with it. With Recall, you have an explorable timeline of your PC’s past. Just describe how you remember it and Recall will retrieve the moment you saw it.

If you’ve forgotten your Microsoft account password, learn how to do a password reset online or by using your Xbox console.