How do I legitally transfer my PSP games to my PC?

[MMXZero2002]

Have you tried to run the game?Run the game and open umdgen

I tried running the game, but my PC only detects my PSP (and its memory stick) during USB mode. I can't load a game while in USB mode (or at least I don't know how to). I set the PSP to auto-load a game when a disc is in, but it still doesn't load the game if I am in USB mode. It seems that my PC recognizes the memory stick of the PSP, but not other stuff.