A Microsoft file hosting and synchronization service.
Try these checks in order:
- Check the correct mailbox or phone.
- Email verification codes are sent only to the primary alias or another email already added as a sign-in verification method.
- If using email, check the Junk folder for a message from
@accountprotection.microsoft.comand mark it as a trusted sender.
- Avoid repeated resend attempts.
- Too many requests can trigger a temporary block and stop Microsoft from sending codes.
- If that happened, wait at least 24 hours before trying again. If it still fails, wait longer, up to 1 week.
- Try another verification method or network.
- If another sign-in method is available, use that instead.
- Switch between Wi‑Fi and mobile data, or try a different Wi‑Fi network.
- Check phone-related issues.
- Make sure the phone is not blocking texts from unknown numbers.
- Make sure the message inbox is not full and the messaging app is working.
- VOIP numbers cannot be used to receive Microsoft verification codes; a mobile number is required.
- If the code is going to another Microsoft email account.
- Open an InPrivate/private browser window and sign in to the account requesting the code.
- Open a second InPrivate/private window and sign in to the alternate email account that receives the code.
- Copy the code from the second window back to the first.
- If access to security info was lost.
- At the Verify your identity prompt, select I don't have any of these and follow the prompts to replace security info.
- If all security info is replaced, there is a 30-day wait before sign-in is allowed.
- If support is needed.
- Microsoft support agents cannot send verification codes or change account details for security reasons.
- Use the sign-in helper or Contact Support from Microsoft Support.