# File System

## Total Space

The total amount of space available (in bytes) in flash memory.

## Used Space

The total amount of space used (in bytes) in flash memory.

## Unused Space (Fragmented)

The total amount of unused fragmented space (in bytes) in flash memory.

## Unused Space (Contiguous)

The total amount of unused contiguous space (in bytes) in flash memory.

## Number Of Files

The total amount of files in flash memory.

## Number Of Unknown Files

The total amount of unknown files in flash memory.

## Cleanup

Press the Apply button to delete useless files from the file system. This will also cause the file system to be defragmented.