hard drive is showing it is full.

Viruses and worms
1

I am working on my parents computer and I have ran virus and malware scans but the hard drive is still showing it is full and I know it’s not.
The computer is a AMD Athlon II x2 240 processor
Windows 7 64bit SP1
455GB Hard drive
Any ideas?
Thanks.

2

Disregard, I found it. Google earth somehow cached 415gb of info in an app data subfolder.