Main Switch

Disconnect the ground cable from battery.
Open the screw cover by using a flat tip screwdriver.
Remove the screw to remove the power window main switch panel.

Fig 1: Identifying Power Window Main Switch Panel And Screw
Courtesy of SUBARU OF AMERICA, INC.

NOTE: Remove it from the cutout portion at the tip of the switch panel.

Fig 2: Identifying Switch Panel And Cutout Portion
Courtesy of SUBARU OF AMERICA, INC.
Disconnect the harness connector.
Remove the screws to remove the power window main switch assembly.