300gb missing from drive space!

anon125

Distinguished
Oct 31, 2013
90
0
18,630
the laptop has about a 500gb drive.
my docs,pics,video,music are 54gb
programs and programs x86 are about 5gb.

but C says it has 383gb used.

any ideas on finding where the rest is?

wish folders showed there size like files do!
thanks all