Things You'll Need
Instructions
Turn on your PSP and connect it to your computer with a USB cable. Your PSP will be in USB mode and you will be able to move files on the PSP.
Go to the location on your PSP where you have saved your games. There are usually three or four folders on the PSP that hold games: GAME, GAME150, GAME3XX and perhaps GAME5XX. Locate your game in one of these folders.
Right-click your game and click "Copy" to place the game on your computer's clipboard. To play the game, paste it into your GAME150 or GAME folder, depending on which firmware you are running. If you are running custom firmware, place the game in the GAME150 folder. If you are running PSP Firmware 1.50, place it in the GAME folder. Right-click the correct folder and click "Paste."
Disconnect your PSP from the computer and navigate through the PSP menu to the game you just moved. It will start without an error.