How do you unlock dell computer screen?

Answer 1

The first thing I would try is to hold down the menu button for 15 seconds. This should work but if it doesn't then try this:

* Turn the computer and monitor off

* Disconnect all monitor cabling from the monitor (power, USB, VGA, DVI, etc.)

* Press and hold in the monitor power button in for 5 seconds

* Reconnect the monitor to the computer

* Reconnect the monitor power cord to the monitor

* Turn on the monitor, then the computer

* Press the Menu button for 15 seconds to unlock the padlock feature