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

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.

Troubleshoot problems with Microsoft Authenticator. You can resolve problems with Microsoft Authenticator by checking the tips in this article and reviewing some of the known errors. If you're using mobile data, try switching to Wi-Fi and vice-versa.

Using AND, OR and NOT with Conditional Formatting in Excel. In Excel, you can also use AND, OR and NOT to set Conditional Formatting criteria with the formula option. When you do this you can omit the IF function and use AND, OR and NOT on their own. In Excel, from the Home tab, click Conditional Formatting > New Rule.

To find a customer service phone number in your country, please click a region and find your country. Note: Support cases for Surface devices may only be initiated online.

Check for Windows updates. Learn how to update drivers in Windows using Device Manager to update or reinstall a driver.

登入 Hotmail 或 Outlook.com. Hotmail 現在為 Outlook.com. 若要登入 Hotmail，您將需要您的 Microsoft 帳戶使用者名稱和密碼。. 提示: 登入時，如果您下次想要直接移至信箱，請在 [保持登入?] 提示中選取 [是] (不建議用於共用電腦)。. 或者，選取 [不要再顯示這個] 方塊，然後 ...

Microsoft 365 Customer Service and Support. The type of support Microsoft provides for consumers depends on the product you're calling about and if you have a product for home or for business use. It can also depend on if you want help for an issue with a service like OneDrive or Outlook.com, or help with Windows, but you don't have an existing ...

Unfortunately, you can't. Message recall is not available for users with email addresses ending in @outlook.com, @hotmail.com, @live.com, or @msn.com. These are web-based email services where once you send an email message, it's gone from your email server and out of your control. Set up undo send in Outlook.com.

Hotmail está ahora Outlook.com. Aprenda a iniciar sesión para acceder a su cuenta de correo electrónico de Outlook.com, Hotmail, Live o MSN.