Many tasks for Office products don't require a product key because your Microsoft account takes care of them instead.

As you saw above, the DATEDIF function calculates the difference between a start date and an end date. However, instead of typing specific dates, you can also use the TODAY() function inside the formula. When you use the TODAY() function, Excel uses your computer's current date for the date.

Windows 10 Pro offers more advanced security and business networking features, including: BitLocker Drive Encryption

Connect with experts, discuss the latest Outlook news and best practices, and read our blog. Outlook Tech Community. Get help in the community. Ask a question and find solutions from Support Agents, MVPs, Engineers, and Outlook users. Outlook Forum on Answers. Suggest a new feature.

Choose the power mode that works for you and what you want to do on your Windows 10 PC. This lets you determine what’s important to you—getting the best battery life, best performance, or a balance between the two. To change the power mode quickly, select the Battery icon on the taskbar, and then drag the slider to the power mode you want.

Learn how to run a disk cleanup in Windows including deleting temporary and system files to free up disk space.

Swipe in from the right edge of the screen, and then tap Search.Or, if you are using a mouse, point to the lower-right corner of the screen, and then click Search.Type Command Prompt in the Search box, right-click Command Prompt, and then click Run as administrator.If you are prompted for an administrator password or for a confirmation, type the password, or click Allow.

Microsoft 365 is our cloud-powered productivity platform. With a subscription to Microsoft 365, you can get: The latest productivity apps, such as Microsoft Teams, Word, Excel, PowerPoint, Outlook, OneDrive, and so much more.

Open User Accounts by clicking the Start button , clicking Control Panel, clicking User Accounts and Family Safety, clicking User Accounts, and then clicking Manage another account .. If you're prompted for an administrator password or confirmation, type the password or provide confirmation.

Important: Bookmark names must begin with a letter.After that, they can include numbers and letters, but not spaces. If you need to separate words, you can use an underscore ( _ ). For example, First_heading.