Right click taskbar at the very bottom of the screen
Choose and open task manager
In new window in bottom left hand corner if it says 'More Details' click the little arrow, if it says 'Fewer Details' don't click
Under apps you should see 'Cognito FiLOS' click the little arrow next to that
After clicking the arrow 'Davisons - Cognito FiLOS' should appear below right click that and choose either 'Switch to' or 'Bring to front'