HP Compaq Pro 6300 Hardware Reference Manual page 23

6.
Push the release button (1) on the bottom of the stand and pull the back of the stand off (2).
Figure 2-11 Removing the back of the Stand
7.
Push the base of the stand down (1), and loosen the captive screws securing the stand to the unit
(2).
Figure 2-12
Releasing the Stand
Attaching the Computer to a Mounting Fixture
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