There are several ways to calculate the difference between two times.

Use the People page in Outlook.com to view, create, and edit contacts and contact lists. Create new contacts from scratch, or add someone as a contact from an email message.

Game Bar is built into Windows 11 so you can capture videos and screenshots while playing PC games. While you're playing a game, press the Windows logo key + G on your keyboard to open Game Bar. If you have an Xbox 360 or Xbox One controller plugged in to your PC, press the Xbox button. If necessary, select the Capture icon to open the Capture widget.

Add or subtract days, months, or years from a date by using a formula or date functions in Excel.

Learn how to fix Outlook.com email sync issues if you can't receive or send messages.

Learn how to restore OneDrive to a previous time, if your files get deleted, corrupted, or infected by malware.

Starting your Surface from a USB drive can be useful if you want to change firmware settings or Windows startup settings. Booting from a USB device doesn’t refresh or reset your Surface.

Answers to questions on finding, getting, and applying product keys.

Problem. After you install the OneDrive sync app (onedrive.exe) to sync your OneDrive for work or school files, or update your Operating System, you may experience one or more of the following symptoms:

Learn how to use keyboard shortcuts in Word to navigate, select, format, and edit your documents faster and easier.