HP Compaq Presario,Presario C770 Maintenance And Service Manual page 50

Remove the hard drive (3) from the hard drive bay.
5.
Remove the hard drive from the hard drive bay.
6.
If it is necessary to replace the hard drive bracket, remove the four Phillips PM3.0×3.0 screws (1)
7.
that secure the hard drive bracket to the hard drive.
Lift the bracket (2) straight up to remove it from the hard drive.
8.
Reverse this procedure to reassemble and install the hard drive.
42 Chapter 4 Removal and replacement procedures