To Fix:

1. Click Start, click All Programs, and then click Windows Fax and Scan.
2. In Windows Fax and Scan, click Tools, and then click Fax Accounts.
3. In the Fax Accounts dialog box, select the fax account that you want to delete, and then click Remove.
4. Click Add, and then follow the steps that are in the wizard to create a new fax account.