From the home screen, drag down from the top of the screen with two fingers to reveal the menu.
Tap SETTINGS.
Scroll to, then tap Storage.
The available device storage is displayed.
Scroll to SD CARD to view the available memory card storage.
The HTC Desire 610, is available with 16GB internal memory with the option to add a MicroSD card up to 128GB.
To free up memory on your device, delete unwanted pictures, music, and videos by tapping the Apps icon > Gallery > Navigate to, then touch and hold the desired file > Delete.
Remove unused apps by tapping the Apps icon > Touch and hold the desired app > Drag to UNINSTALL, then release > OK.
Clear app data by swiping down from the notification bar with two fingers > SETTINGS > Apps > Navigate to, then tap the desired app > Clear data.
Download a cloud storage app by tapping Play Store > Search icon > Enter the desired cloud storage app, then tap the Search icon. > Tap the desired app > INSTALL > ACCEPT > OPEN.
Purchase an SD memory card to expand your device memory.