that's what I'm wondering. it's difficult to know if the tiles still exist. there's a metadata indexer that records the tiles created on the system which is y u have to install things. its purpose is to improve loading times. the ps3 actually does the same thing. the xbox 360 doesn't though. lol anyway, that entry may be gone from the indexer, so I think we should try to force reinstallation by an update. it works on the 3ds, so I'm just guessing this will happen. unlike the 3ds, however, the ticket for apps/games doesn't have to be present as there's now an error screen. I don't know if those two things have tickets, where their installed even, so updating may be ur only option. the disc and vWii apps may still be present, just not in the metadata indexer which is y they don't appear. the indexer contains the meta, the location of the important files for the tile to be bootable.