Dell Inspiron 7791 2n1 Service Manual page 10

Steps
1. Loosen the three captive screws that secure the base cover to the palm-rest assembly.
2. Remove the eight screws (M2x4) that secure the base cover to the palm-rest assembly.
3. Using a plastic scribe, pry the base cover starting from the hinges and continue to pry the base cover from the slots on the palm-rest
assembly.
CAUTION: Do not pry the base cover from the middle as it might damage the chassis.
4. Carefully remove the base cover off the palm-rest assembly.
10 Removing and installing components