20 Gigs of Data in my internal memory?

[Android Central Question]

I have 32 Gigs of internal storage, it says that 29 Gigs are used.

All of my apps photos and videos are stored in my ext sd 16 gb card. I have 173 apps installed, all of which I downloaded to my ext sd card, which has 3.10 gb used of 15.93 gb.

My default write disk, is my SD card.

The app DiskInfo says that I have, in my internal drive, 19.7 GB data in my internal storage. In the /data mount.

I have tried clearing all my caches via the settings option, and checked the folder DiskInfo says it's full of cache data, and there's none. Nothing in those folders. I have tried all the other solutions in other posts but none have worked.

How can I erase that data, and keep that from happening again?

 

[B. Diddy]

Welcome to Android Central! Which tablet? Unless you've formatted the SD card as Internal Storage (i.e., the tablet supports Adoptable Storage), you can't install an entire app to the SD card. Moving an app to SD only moves a portion of the app (and often only a small portion of it). Many apps won't even allow themselves to be moved to SD.