Dell · Laptop
Latitude E5540
Latitude E5540 · E5540
F2Tap
System setup / BIOSPress during POST when the Dell logo appears.
F12Tap
One-time boot menuPress during POST when the Dell logo appears. The menu lists boot devices and diagnostics.
Manufacturer verified · checked
The exact-model Latitude E5540 Owner's Manual maps both startup keys to their actions.