e-mail message at log on screen

[selway2u]

on my log on screen it says I have 14 unread e-mails under someone elses e-mail address.

I have tried for hours to delete this message.

Is there any way to turn this notifacation off or reset it back to show none?

Do I have to reformat hard drive and do a fresh install, god I hope not.

I'm running the pro edition and any help would be appreciated and thanks in advance.

 

[Qumahlin]

download microsoft powertoys, and open up tweakUI, it can turn off the message or you can set it to reset after so many days