Get Microsoft billing support. Find help with Microsoft Store purchases, subscriptions, refunds, payment options, and checking your order history.

O Hotmail agora está Outlook.com. Para entrar no Outlook.com e acessar sua conta de email do Outlook, Hotmail, Live ou MSN.

With the Microsoft Forms Quick Poll add-in for Outlook or Outlook Web App, you can create a poll in seconds right within an email message.

Learn how to check for, download, and install KB 2919355, an update for Windows 8.1 and Windows RT 8.1.

Set up the Microsoft Authenticator app from the Security info page. Depending on your organization’s settings, you might be able to use an authentication app as one of your security info methods.

Synchronization of contacts between your Outlook account and your Apple iPhone or iPod touch requires Apple iTunes.You can configure which items are synchronized during a one-time set up process.

We’re making some changes to Windows and Microsoft 365 that will impact Cortana users. Cortana voice assistance in Windows as a standalone app was retired in the spring of 2023.

Learn about the quotas and differences between Microsoft storage and email storage.

Data Execution Prevention (DEP) is a technology built into Windows that helps protect you from malicious code launching from areas of memory that have been designated as for data only.

Get troubleshooting steps for when you can't sign in to the Xbox app.