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

Registering a device gives your phone access to your organization's services but doesn't allow your organization access to your phone. If you're an administrator, you can find more information in Configure and enable users for SMS-based authentication.

We've put together this article to describe fixes for the most common problems. Your Azure Active Directory (Azure AD) organization can turn on two-step verification for your account. When two-step verification is on, your account sign-in requires a combination of the following data: Your user name. Your password.

The Phone Link supports messages sent by Short Message Service (SMS). It also supports Multimedia Messaging Service (MMS) messaging. You can still send your favorite photos and GIFs from your PC.

If you can't sign in to your Outlook.com, Hotmail, Live, or MSN email account, or you're not sure how to sign in or sign out, here are some solutions.

If your system is asking you for your BitLocker recovery key, the following information may help you locate your recovery key and understand why you're being asked to provide it. Important: Microsoft support is unable to provide, or recreate, a lost BitLocker recovery key.

If you pre-ordered a game and want to cancel, you can do so up to 10 days before the game launches at: Order history. After this time, you may be billed, and you’ll need to request a refund to cancel your order. For more info about digital game pre-orders, see: Pre-order Xbox digital games in the Microsoft Store.

Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

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

Change or reset your Windows password. Accessing the account of someone who has died. Learn how to reset or change your Microsoft account password. Get help with a forgotten Microsoft account password.