When the word "upgrade" is used in reference to computer hardware, almost without fail the meaning behind the term is essentially "Replace the old piece of hardware with a newer and better one." In the case of the Acer Aspire 5532-5535, "upgrading" the hard drive involves removing the original drive from the laptop and replacing it with a hard drive that has more storage capacity. Fortunately, this is one of the simpler upgrades for the Aspire 5532.
Turn off your laptop and disconnect all power and device cables.
Turn the laptop over and locate the hard drive cover. It is the removable section immediately below the computer fan cover.
Use your Phillips screwdriver to loosen and remove the two screws securing the hard drive cover. They will be located at the top end of the cover, just below the fan.
Pop the cover off the hard drive compartment and set it aside. Be careful not to lose the screws.
Slide the hard drive and hard drive tray backwards using the "pull tab," then lift the drive tray up and out of the compartment.
Use your screwdriver to loosen and remove each of the four screws securing the hard drive to the hard drive tray. Place the screws to the side and remove the hard drive from the tray.
Place the new hard drive onto the tray in the same position as the old one, then secure it using the screws you removed in the previous step.
Place the new hard drive and tray back into the hard drive compartment and push it forward so that it plugs into the SATA socket at the top of the compartment. Be careful, as you do not want to damage either the hard drive connector or the socket.
Replace the HD compartment cover and secure it using the two screws you removed in step three. Your new hard drive is now ready for use.