Tables in Database window have names starting with MSys due to system files.
Cause:
Tables with names starting with 'MSys' are system-defined tables that are part of every database file and are used by Access to keep track of the objects in the database. When a new database is created, Access automatically creates these tables and other system objects needed for tracking purpose. 'MSys' objects can either be viewed or kept hidden.
Solution:
As a workaround, hide the system-defined 'MSys' tables and other system objects from view.
To hide MSys tables from view:
1) Select the 'Tools' menu and select 'Options...'. (The Options dialog box appears.)
2) Click the 'View' tab.
3) Clear the 'System Objects' check box in the 'Show' group.
4) Click 'Apply'.
5) Click 'OK'.
CAUTION: Do NOT delete any tables whose names begin with 'MSys'.