Access Database that is shared with my company on a network drive..When I copy and paste it to my desktop there linked some how?
When you copy the complete access database to another place and modify it there, then the data in your source database would not be changed.

The most likely explanation is, that not all data is stored in the database you copied, but instead some of the tables are links to another access database or even ODBC connections to a completely different database system.

You can usually quickly recognize those tables by having another symbol in your tables list.