HP ProBook 4740s Notebook-PC - Manual (Page 66)

3. Replace the four hard drive screws (2).
NOTE: Refer to the illustration that most closely matches your computer.
4. Replace the service door. (See Removing or replacing the service door on page 50 .)
5. Replace the battery. (See Inserting or removing the battery on page 43 .)
56 Chapter 7 Drives