HP TouchSmart dx9000 Reference Manual page 15

8. Apply additional pressure to lift the computer stand as far as it will go to an upright position, about
90 degrees (B) from the computer, and then move the latch to the left until it is in the locked
position (C).
9. Using the notch on the wireless keyboard and mouse receiver, pull the receiver out of and away
from the back of the computer.
Opening the HP TouchSmart PC 9