My Microsoft hardware developer account cannot be logged into, and the prompt says: "No account found with this username."

If you are unable to log into your Microsoft hardware developer account and receive a message stating "No account found with this username," there are several steps you can take to troubleshoot the issue:

1. Verify Credentials: Ensure that you are using the correct username and password. Sometimes, users may confuse their work and personal accounts, especially if they have similar email addresses.
2. Check Account Status: It’s possible that your account may have been disabled or deleted. You can check the status of your account by signing into the Microsoft Entra admin center if you have administrative access.
3. Reset Password: If you suspect that your password may be incorrect, try resetting it. You can do this by selecting the "Forgot password?" option on the sign-in page.
4. Account Recovery: If you are still unable to access your account, consider using the account recovery options provided by Microsoft to regain access.
5. Contact Support: If none of the above steps work, you may need to contact Microsoft support for further assistance regarding your account.

These steps should help you identify the issue with your account and hopefully restore access.