View Full Version : What makes sectors "unmoveable"?

15-02-2012, 06:05 AM
When defragmenting, that is. I've just got to know. I guess I'm a bit obsessive compulsive about this.
Is there a way to optimize these "unmoveable" sectors?

15-02-2012, 06:32 AM
Unmovable areas typically are reserved operating system areas - particularly the area for the cache, and for OS files already in use.

There may well be other areas now like the prefetch, hibernation areas as well.

For those who are really wanting to maxiise the defrag, I'd suggest the following:

1) Defrag to get as much as possible filling the sectors at the start of the disc

2) Add another 4GB of data (just temporary filling)

3) Reassign the cache to a bigger size (this will free up the old cache area)

4) Restart Windows and Delete the 4GB of temporary filling

5) Defrag again (this should create a large free space for when you again re-size your cache)

6) Set the cache back to its optimal size

Hopefully after that it'll be less fragmented. Don't expect any significant gain from doing all that.

I once saw an app that identified the files that were unmoveable - might be worth Googling.