Are you sure it doesn't say 20.96GB? Or how about a screen shot?
yes, got a screenshot
sudo mdutil -E /
That screen gets data from Spotlight and when the Spotlight index is corrupted it will read incorrectly like yours is. Run the command below in Terminal to reindex Spotlight and that will fix it.
Give it some time to complete the reindex.
Code:sudo mdutil -E /
Why do I have big storage for the "other" component? It consumes more than 100gb. How can I get rid of that?? Pls help me...