What does it mean when the files on your computer (C drive)are listed in blue rather than black?

When I go to My Documents or certain folders under my C drive, some of the files are listed in black letters and some are lister in blue letters. What does it mean when they are listed in blue?

What does it mean when the files on your computer (C drive)are listed in blue rather than black?
OH MY GOD BLUE YOU SAY!!!!!THE PROPHECY HAS COME TRUE WE'RE ALL GOING TO DIE AAAAAAAAAAAAAAAARGHHHH!!!!!!!!!!!!!
Reply:That means your drive is compressed.
Reply:he's right... it's a good thing
Reply:You have some correct answers - compressed files.


This happens when you do a disk clean-up and check the box to do so. You can make them black again by hi-liteing them (you can hi-lite all the files by hitting Ctrl / A) then righ clk any one of the hi-lited files and clk Properties. Un check the box on the bottom that says "Read Only". It's ok to leave them blue if you like.
Reply:that means they are archived(compressed). They use up a little less of your hard drive.
Reply:They are compressed files.
Reply:They are compressed.
Reply:I think that if it is in blue then the files are encrypted.