Computer Hard Drive Defrag - Unmovable Data?

I recently defragged my hard drive using Windows Disk Defragmenter. A sizable portion of the data was listed as ''unmovable''. What would such data be? Are they system files or something else? I regularly check and clean my system and registry with updated Antivirus, Spyware, and Malware, and Registry Cleaning programs. Thanks!

Computer Hard Drive Defrag - Unmovable Data?hijack this

They are the system files.

when you press the reset button, CPU gets its first instruction from last location of the memory, where self-test program is stored and the booting process goes on. after the booting process is done the control is given to the program which is responsable to load the operating system into memory. thus all operating systems stores this program on a fixed location on harddrive. not only these programs there are some other programs which stored in a fixed location adn there are some other devices which take instructions if those instructions are writted in a fiexed location.

Computer Hard Drive Defrag - Unmovable Data?liveupdate

Defraging has been said to be useless. I never do it, and my computer's really fast.

Also use Firefox (getfirefox.com) to prevent all that Internet Explorer malware, and you should be fine!
the data is green and cannot be moved because it is your virtual memory page, it is a part of your hdd that windows uses as if it were ram, you can change the size of the virtual memory page by doing the following, click start/ right click on my computer/ properties/ advanced/settings/ advanced, and you will know that i am right
Some files are there they can't removed
System files, registry files, and other VERY important files. They are on every hard drive
Usually these are system files that the operating system needs to find at a particular place for boot up. Nothing to worry about.