Message Centre

Evert time I go to open my comapny files I get a pop up box stating that "The Message Centre cannot be updated because you do not have sufficient rights to the file.  c:\Users\  etc  Simply Accounting\Messages\CAN2015\settngs.xtm.  I have been there and see nohting I can do.  I just want to know what to do or get rid of that announcement!  I am using Windows 10.