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.

Chat or receive a call back from a technical support expert: If you have a Microsoft 365 Basic, Microsoft 365 Personal, or Microsoft 365 Family subscription, get questions answered from anywhere via chat or request to receive a call back from one of our technical support experts.

Open the Link to Windows app by going into the Quick Access panel, and then tap and hold the Link to Windows icon. Tap Account, and then tap the email address. Scroll down to Your account - Link to Windows, and then click the email address. Click Remove account.

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

To sign into your Microsoft account with a passkey, follow these steps whenever you get a sign-in prompt. Choose Sign-in options, or Other ways to sign in. Select Face, Fingerprint, PIN, or security key. Select your passkey from the list available.

Sending a message. If you haven't already set up messages, do the following: On your PC, in the Phone Link, select Messages. To start a new conversation, select New message. Enter the name or phone number of a contact. Select the person you want to send a message to.

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

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

Add, remove or update an email address or phone number. If you want to make changes to the email addresses or phone numbers associated with your Microsoft account, use our guided support tool below to help you update the right information in the right way.

For Business users: 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.