Hi, I've tried to do the same thing, but the external microSD card is emulated, meaning not installed as a system memory., therefore, apps don't have access to this device for running them. Its basically a storage device for apps data, and side-loading video, text, photos, PDF files and other documents. I have an email in to ASUS tech support about this issue, and to see if can update the interior storage to 32 GB instead of the 16 GB it has, and how much to do so. The only thing that I've heard that will solve this problem is ROOTING the device, which, may void the warrenty.