From the home screen, swipe down from the top of the screen to reveal the Action Center.
Tap ALL SETTINGS.
Scroll to, then tap storage sense.
The available device and memory card storage is displayed. To view specific details, tap the desired storage location. Note: For this demonstration, 'phone' was selected.
Storage usage is displayed by category. Tap the desired category to view details.
To set the save location for apps and data, from the storage sense home screen, scroll to Change where you store your music, photos, apps, and more and change the settings as desired.
To free up memory on your device, delete unwanted pictures, music, and videos by swiping down from the notification bar > ALL SETTINGS > storage sense > phone > Desired option > uninstall or manage.
Remove unused apps by swipe left > Touch and hold the desired app > uninstall > yes.
Download a cloud storage app by tapping the Store tile > Search icon > Enter the desired cloud storage app > Go icon > Desired result > install > allow.
The Nokia Lumia 520 is available with 8GB of internal memory and the option to add a MicroSD card up to 64GB. Note: Purchase an SD memory card to expand your device memory.