Stuck with extended desktop cracked screen laptop - how to revert to normal display?

Solution 1:

Give this a whirl:

1. Press Win+R to bring up the Run dialog box.

2. Type control desk.cpl (there is only a space after control) and click OK to open the display properties box on the screen that you cannot see.

3. Press Alt+Space to bring up a special menu.

4. Press M to put the window into "move! dammit!" mode.

5. Now use the left or right arrow key (try both, not sure which one will work for you), keep tapping it or hold it down until the window appears on your working screen.

Once you see the window, you should then be able to adjust the settings to your liking.

Solution 2:

Most laptop have function key combinations on the keyboard that allow you to toggle the screen display between the builtin screen only and the external display only. This key combination should override the OS settings and allow you set the external display as the only display device.