don't know. I don't have over 300 titles. I have like 265. it's not so much the garbage games being installed, but when or if the system ever fails, having to reinstall all that seems like a waste (have a second wii u for when 5.3.2 was the highest exploitable). I lost a ps3 and a 360 external hdd (one for each), losing hundreds of games, so now I only install what I plan to play. of those 265 titles, I bought 76 of them. the other stuff is mostly crap, but it's installed, so it doesn't matter much to uninstall them. plus, I have a 2TB hdd. if you plan on using the system config tool method, it's just a long list. I used system config tool to install my games rather than wup as well as back up saves (version I have can't restore them). there's an option to restore them that I saw in one of the pics, but the option doesn't exist for the one punderino sent me. I told him about it, and he said that it must be the version. I think he has a newer version where you can install saves, but I'm just using saviine. saves are more thoroughly backed up with system config tool too (i.e. icons and whatnot are backed up too).