Things You'll Need
Instructions
Connect the external drive to your computer via its USB connections. Make sure the drive is connected to any external power supplies and turned on. The computer should recognize the drive.
Format the drive to the FAT32 file system by selecting "Run" from the Start menu and typing "CMD." Click "OK" to open the command prompt.
Type "format /FS:FAT32 X:" into the command line. Replace "X" with the letter assigned to your external drive, and press "Enter." Confirm that you wish to format the drive and the computer will proceed to do so.
Alternatively, you can download a program such as SwissKnife to format the drive without going through the command line. Make sure you set the drive to format to the FAT32 file system.
Go to "My Computer" and open the external drive after it is done formatting. Create four folders, and label each identically to the folders located on the PS3 internal drive. These will be "Photo," "Video," "Music" and "Game."
Eject the drive from the computer and disconnect the USB cable.
Connect the drive to your PS3 using one of the available USB ports.
Power on the PS3, and the drive will now be recognized as one of the PS3's storage devices.