Learn how to set up automatic replies in Outlook on Windows 10 for when you're out of office or unavailable to respond to emails.

Xbox Support offers help for Xbox, Game Pass, and billing questions. Get advice and customer service in the Xbox Support community.

Use Settings in Windows 10 to change default apps and programs.

How to use the SUMIF function in Excel to add the values in a range that meet criteria that you specify.

Learn how to reinstall Windows on your PC and how activation works after it's installed.

Learn how to troubleshoot Windows activation errors. Browse common activation errors and learn what you can do to fix them.

Learn how to connect your Windows PC to external monitors and adjust the display settings.

The Calculator app for Windows is a touch-friendly version of the desktop calculator in previous versions of Windows. You can open multiple calculators at the same time in resizable windows on the desktop and switch between Standard, Scientific, Graphing, Programmer, Date calculation, and Converter modes.. To get started, select the Start button, and then select Calculator in the list of apps.

Learn how to use virus and threat protection options in Windows Security to scan your device for threats and view the results.

Learn how to unlock your Microsoft account and resolve 'account has been locked' error message.