There are a number of possible explanations for why verification codes don't always arrive. Read through the list of the most common causes, and see if any of them apply to you, or use our troubleshooter to help guide you.

Mobile device or work phone call: Enter your mobile device number and get a phone call for two-step verification or password reset. For step-by-step instructions about how to verify your identity with a phone number, see Set up security info to use phone calls.

In the meantime, sign in to your account to see your latest refund request status. Redeem gift cards and codes to make Xbox purchases and extend your Xbox subscriptions. Codes are 25 characters long, include both numbers and letters, and follow a 5x5 format—five blocks of five characters.

For technical support, go to Contact Microsoft Support, enter your problem and select Get Help. If you still need help, select Contact Support to be routed to the best support option. Learn how to manage your Microsoft account security info and troubleshoot verification code issues.

To redeem a Microsoft gift card, Xbox download code or token, select Redeem code below, sign in, and enter or paste the code or token value. Redeem Code. Tip: If you bought the wrong code, please contact the retailer.

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.

To install Authenticator on your Android device. Scan the QR code. or download and install Authenticator from the Google Play store. Get the app.

Follow these steps to reset your Microsoft account password. Follow the steps on this page to change the Microsoft account email address or phone number (also known as your account alias or username) that you use to sign in.

Sign in to SharePoint. SharePoint is a browser-based app that you connect to through your web browser, like so: Go to office.com, and sign in to your work or school account. In the upper left corner of the window, select the app launcher > All apps > SharePoint.

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.