Provides information for avoiding and reporting Microsoft technical support scams.

Learn how to activate Windows using a product key or digital license, check your activation status, and link your Microsoft account.

Go to Payment & billing and select Payment options. Under Payment methods, you can select Add a new payment method, View or edit card, or Remove card. Enter your updated info, and select Save. You're done unless you see more prompts. If that doesn't work, contact your bank or payment provider to verify your payment info.

If you think your Microsoft account has been hacked, find out how to secure your account and check for unauthorized activity.

Criminals use phishing attacks, malware, and tech support scams to try and steal your information and your money. Learn how to stop them.

Learn how to find a Windows product key for activation, and when you'll use a digital license instead.

A phishing email is an email that appears legitimate but is actually an attempt to get your personal information or steal your money. Some deceptive emails appear to be from a safe sender but, in fact, have a "spoofed" source address to fool you. Here are some ways to deal with phishing and spoofing scams in Outlook.com. Spoof intelligence in Exchange Online Protection helps prevent phishing ...

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

About digital signatures and certificates in Office, and buying a digital certificate from a certificate authority or create your own.

Learn how to recover a hacked or compromised account, what to do next, and how to prevent your account from being compromised in the future.