Everytime I defrag, I look at the "Map of Harddrive" and end up seeing all of the spots where there are tons of read only files on my harddrive. I've right clicked on the C: drive and changed read write properties on every file (Or so it seems it should have...) but their still there. When I defrag, they stay in the middle of everything. I've done this on other versions of windows over the years, and had no problem, but XP seems to block my attempts. I know that files are usually set to read-only for a reason, but it's nothing that should keep the file from moving during defrag. Unless of course you've got some weird program for security or something of that nature. It all boils down to just one thing, How can I defrag ALL of my files on my computer, including the ones that are currently set to read-only.