Acer Packard Bell dot M Series Service Manual page 14

4. Lift the hard disk drive module out of the bay.
NOTE: To prevent damage to device, avoid pressing down on it or placing heavy objects on top of it.
5. Remove the four screws (two each side) securing the hard disk to the carrier.
Step Size Quantity Screw Type
HDD Carrier M3*3 4
6. Remove the HDD from the carrier.
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