I didn't know flash drives weren't recommended by Nintendo, it was just supposed to be temporary until I could get an HDD, but it turned out to be a pretty long temporary... over a year and a half. I was forced to get an HDD as well as a Y cable. So I found out about this sector to sector copy thing, I tried it with HDD RAW Copy Tool, but it seemed to copy the corruption as well as it couldn't be read by anything after. It looked liked there was no partition so I put it back then formatted it. I then looked up other tools to do it better, I tried AOMEI Partition Assistant using copy disk, but it creates more than one partition: One for the copied data and one for everything else which is empty and it doesn't look like there's even a file system. I can't merge the partitions together either. So how do I do it? I REALLY DON'T want to lose all my save data which includes: Mario Kart 8 Mario Party 10 Nintendo Land Skylanders SuperChargers (my nephew's probably going to be sad about possibly lost progress) Super Smash Bros. Splatoon (Not much progress really, but still... I know I was under level 20 and I didn't do the single player thing) Xenoblade Chronicles Wii (It may not be X which is bigger and non linear, but still, I DO NOT want to start again. I was at the part after beating Xord, it's still a lot of possibly wasted progress) And a bunch of indie games including Runbow and The Cave... my nephew's going to be sad if I tell him I lost our progress on the latter. That's all I can think of of the games I possibly lost my progress in. Not as much as what other people probably have, like over a 100 hours of playtime in XCX and stuff... but it doesn't matter because lost progress is still lost progress and I don't want to lose it.