I used to work for a firm that uses Office 365. Probably Office 365 for Business. When I left I asked them to delete me as a user of their Office 365 suite. I then purchased my own license for using Office 365 at home.



Ever since, I get a pop-up box asking me to provide a password to get back into their system. However, that password was disabled by the firm -- it is no longer valid. If I "x" it out, it immediately pops back up. I think the pop-up is somehow related to Office 365. The popup will not go away -- it is there whenever my computer is turned on. What can I do to get rid of it? Any help greatly appreciated.