How do I view hidden files on my Hard Drive?

Hard drive files cannot be seen but they are there?

• I cannot find my user in Documents and Settings. My computer did not start up so i decided to install windows xp on my second hard drive. I now need to transfer my music, pics ect. From my old windows xp hard drive to my new windows xp hard drive but i cannot find my user or any of my stuff on my old windows xp hard drive. My old windows xp hard drive is 80gb and there is only 4gb free, however; when i highlight everything in my old windows xp hard drive it says there is only 20gb on it, but when i right click on my old windows xp hard drive and go to properties it says there is only 4gb free. I have tryed folder options click the view tab then mark show hidden files but this still does not show my missing user Here are some print screen of my hard drive http://www.flickr.com/photos/74913615@N05/?saved=1

• Answer:

  Control Panel, Appearance/Personalization,Show hidden files/folders, then you need to select it on the menu of various options and hit ok. Edit: If it isn't there either it got renamed for some reason and you are looking past it, you had your old HDD plugged in when installing windows and it transferred the account's folder to the new one, the old HDD is damaged and the info can't be read, you accidentally deleted the folder at some point, or you did something to seriously screw your computer up.