A product key is a 25-character code that's used to activate Windows and helps verify that Windows hasn't been used on more PCs than the Microsoft Software License Terms allow.

To return to the original settings later, go to Design > Paragraph Spacing and choose the option under Style Set.This may be Default or the name of style you’re currently using.. Change the line spacing in a portion of the document. Select one or more paragraphs to update.

Training: Get productive quickly with our Outlook Quick Start. Learn how to create and send email, and use @mentions to get someone's attention.

A Microsoft account gives you access to Microsoft products and services with just one login.

Multiple IF functions can be nested together to allow for multiple criteria. The Excel IF function statement allows you to make a logical comparison between a value and what you expect by testing for a condition and returning a result if True or False.

Troubleshoots and fixes common issues with security and malware prevention in Windows.

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

Learn how to find and install digital downloads from Microsoft Store. See instructions to download and install software directly purchased from Microsoft.

Get answers to common questions about Windows 11 and Windows 10 in S mode.

If you're trying to add your Outlook.com account to Outlook or another mail app, you might need the POP, IMAP, or SMTP settings. You can find them below or by viewing them in your Outlook.com settings.. Outlook and Outlook.com may be able to detect your account's mailbox settings automatically, but for other non-Microsoft accounts, you may need to contact your email provider for their settings.