You need to wait for a firmware update to your phone and then accept Extras+info app update. The extras+info app update installs the Storage Check app to the Lumia device. It will be visible in the Settings menu.
- Which languages does Cortana support?
- Where can I find info about the amount of memory on my Lumia?
- How do I find the MAC address and other phone information of my Lumia phone?
- Where are the stories stored and how can I view them later?
- What is the difference between public and private sharing in the Storyteller app?