Acer's Aspire line consists of a variety of laptops targeted towards the home or small-business user. These devices come equipped with a 2.5-inch hard drive installed in the base of the laptop, concealed beneath a removable cover. Depending on your computing needs, you may wish to swap out the installed drive in favour of one with a larger capacity. Since the laptop only features one hard drive bay, you'll have to spend some time generating a backup of your saved data.
Review the contents of the currently-installed hard drive and determine which files you wish to transfer over to the new drive. Copy these files onto an external storage device, such as a USB flash drive or external hard disk. Alternatively, burn the files onto a blank CD or DVD.
Shut down the laptop. Disconnect the power cord and any attached devices, such as an external monitor, keyboard, mouse or printer. Close the laptop's display. Examine the underside of the laptop and locate the battery pack. Slide the latch located next to the battery bay, then remove the battery from the laptop.
Locate the large, removable panel installed on the underside of the laptop. Remove the screws securing the panel in place. Lift the panel free of the laptop. Locate and remove the screw securing the hard drive module to the hard drive bay.
Slide the hard drive module to one side until the drive detaches from the connector in the bay. Lift the module out of the bay. Remove the screws securing the hard drive to its enclosure.
Remove the hard drive from the enclosure and install the replacement hard drive in its place. Use the previously-removed screws to attach the enclosure to the hard drive. Insert the assembled hard drive module into the drive bay.
Slide the hard drive module to one side until you feel the connector engage with the port. Use the previously-removed screw to secure the module in place. Reinstall the hard drive cover and secure it back into place.
Reinstall the battery pack and reconnect the power cord and any necessary peripherals. Turn on the laptop and install your desired system and application software. Copy over the files that you saved from your original hard drive.
After you have removed the old hard drive, install it in an enclosure for use as an external drive, or save it in an anti-static bag in case the new drive fails.