Nintendo Switch Manual page 89

Restoring the console to factory settings
All of the data stored in the console's system
memory will be deleted, including software data,
save data, screenshots and user information.
Use this feature before exchanging or disposing of
your Nintendo Switch console.
◆ You will also become unable to use software
data saved on a microSD card.
If you are trying to reformat your console because
a problem has occurred, we recommend that you
try restoring the factory settings without deleting
save data.
Make sure you are aware of the following
before restoring your console to factory
settings
Restoring the console to factory settings will
delete all data, and you will no longer be able to
use data saved on a microSD card.
• The following types of data, saved in the
system memory, will all be deleted:
・ Software data
・ Save data
・ Screenshots
・ User information
・ Nintendo Account link