I have a 127gb solid state hard drive. I only use it to run my programs. All saved files are sent to other internal hard drives. I just happened to notice today that I only had 7gb of space left on my C drive. I did a quick check and found that I only have 44gb of programs and files that appear. Therefore there are about 86gb of files somewhere that I can't see. I'd like to know what is filling up my hard drive. I need to know how to reveal those hidden files and folders. Can someone tell me how to do that?