Learn how to create and save a passkey to sign in to your Microsoft personal or work/school account and many other websites, apps and services.

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

Want to add a padlock to your email messages? You can use encryption and digital signatures in new Outlook, classic Outlook, and Outlook on the web for work or school accounts to increase the security of messages. Encrypting an email message in Outlook means it's converted from readable plain text into scrambled cipher text. Only the recipient who has the private key that matches the public ...

Note If you create an Outlook profile without an email address, any contacts, tasks, or calendar entries you create will only be accessible on the computer where you created the profile. If you use Outlook on another computer or device, none of your information will synchronize unless you also add an email account to Outlook that supports the sharing of contacts, tasks, and calendar entries.

Learn how to manage your Microsoft 365 subscription and billing if you purchased it through a third-party retailer.

A popular tactic of criminals is the "fake order" scam. The way it works is that you get a message, usually in email or text, that appears to be a routine confirmation for an order. Of course, you never ordered whatever product or service it's confirming. The message looks common enough, and it says that money will be charged to your credit card or withdrawn from your bank account for the ...

By using a code or a link, people can join a team in Microsoft Teams directly without needing to request permission.

Help me use markdown to share a block of code Show me how to send code snippets in a message Use Markdown formatting in Microsoft Teams for me.

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

The Microsoft Authenticator app helps you sign into your accounts when you're using two-step verification.