Google 4 Manual Book page 197

IMPORTANT: Android manages and
carefully guards the portion of inter­
nal storage where the system, apps,
and most data for those apps are
stored, because this area may contain
your private information. It's not pos­
sible to view this portion of internal
storage when you connect your de­
vice to a computer with a USB cable.
The other portion of internal storage,
where music, downloaded files, and so
on are stored, remains visible for your
convenience.
You're able to optimize your memory usage
by:
• Uninstalling apps you don't use.
• Deleting downloaded files or files you cre­
ated and copying them over to a computer
via USB.
• Removing content from Google Play
DEVICE SETTINGS 188