Nintendo Switch revised model storage is full or games will not install

The checks in more detail

Choose a card from a known brand, as fake cards fail and corrupt games. Archive software you are not playing: Archive Software removes the game but keeps the save data and the icon, and you can download it again later. Delete is different and removes the software, and deleting save data is a separate action that Nintendo warns cannot be undone. Other things use space. Screenshots and videos are stored on the system memory by default, and you can move them to the card in System Settings, Data Management, Manage Screenshots and Videos.

Clearing the cache in Formatting Options frees a little and fixes odd behavior. Updates for installed games need free space while installing, so keep at least a few gigabytes spare. If you move games to the card and they will not load, check the card's seating and test it in another device, as a failing card appears as missing games. When you buy a second card, you can swap it and keep each card's games, since software on a card is tied to the console that installed it. Back up your saves with Nintendo Switch Online cloud saves before any big clear-out.

If storage shows full after you have deleted a lot, restart the console, and if the figure stays wrong, contact Nintendo. Plan your storage the way you plan a bookshelf. Keep the games you play weekly on the fastest storage, the system memory or a good card, and archive the rest, because archiving costs nothing and the save data stays. A 256 GB card holds about twenty big games, and prices for cards fell a lot, so one is usually cheaper than the time spent managing space. Label your cards if you own several, since each holds a different set of games.