Pruning System Files
Some files accumulated over time are kept on the device for speed and offline access. These include:
These files are kept for speed and convenience when using your device. If, however, you need to free up space on your SD card you can prune these files without any major impacts to your device.
In order to prune system files, click the settings icon in the top right of the interface
. Click the 'Advanced' tab.
Scroll to the bottom and you will find a
Prunebutton under the 'System Maintenance' heading: