Would you like to copy your global settings from your previous installation of Microsoft Project to Microsoft Project 2013? ...

{Would you like to copy your global settings from your previous installation of Microsoft Project to Microsoft Project 2013?

The global used by Project, ^1, may contain changes you have made to customize Project. If you have edited items such as views, tables, filters, custom fields or macros, you can make them available in Project 2013 by copying the customized items from ^1 to the current Global.mpt file.}