Dell Inspiron 17R 5720 Owner's Manual page 16

Procedure
CAUTION: The keycaps on the keyboard are fragile, easily dislodged, and
time-consuming to replace. Be careful when removing and handling
the keyboard.
1 Turn the computer over and open the display as far as possible.
2
Using a plastic scribe, release the keyboard from the tabs on the palm rest and ease
the keyboard up until it clears off the palm rest.
CAUTION: Be extremely careful when removing and handling the keyboard.
Failure to do so could result in scratching the display panel.
1
1 tabs (4)
3 keyboard
16
| Keyboard
2 plastic scribe
4 palm rest
2
3
4