HTC One M9 User Manual page 214

214 Power and storage management
Moving an app to the storage card
When you're running out of phone storage space, you can move your downloaded apps
to the storage card if the card has been set up as internal storage.
Preinstalled apps cannot be moved.
1. From the Home screen, tap
2. Tap Phone storage > Apps.
3. Tap the app you want to move.
4. Tap Change, and then tap the storage card name.
5. Tap Move.
You can also move an app from the storage card back to the phone storage.
Viewing and managing files on the storage
Starting from Android 6.0, you can go to Settings to view and manage files on the phone
storage and storage card. You can also view and manage files on an external USB
storage device when you have it connected to HTC One M9.
1. From the Home screen, tap
2. Tap Phone storage or the storage card name.
3. Tap Explore to view internal storage content—whether it's phone storage
content or internal storage content on the storage card.
> Settings > Storage & USB.
> Settings > Storage & USB.