NEC VERSA VX Service And Reference Manual page 53

Remove the ten screws on the bottom that secure the top cover to the system.
3.
Removing the bottom screws
A – Screw
Turn the system over.
4.
Locate and remove the one screw inside the hard disk drive bay that secures the top cover.
5.
Removing the drive bay screw
A – Screw
Disassembly and Reassembly 3-11