I have an external drive that has terrible fragmentation. The drive has 50gb free (just over 10%). I defragged and optimized, so the 40gb is all in at one 'end' of the disk. There were no fragmented files.
I copied 811 files (7.5 Gb) and now there are 270 fragmented files - one file is fragmented into 1,110 pieces! 18040 files ahve 10 fragment or more.
Looking at the disk map, it seems that windows is placing new files where the old ones were (ie: not at the 'end' where all the space is).
So, it seems either auslogics has not optimized the disk and left spaces or windows is doing something odd.
Why doesn't windows place big files whre there is space for them?
Is there any point in using a disk optimizer if windows only uses the tiny spaces in the non-optimized area?
Am I making it worse by using the optimizer because by creating lots of space at one end (which is not used by windows) I have more fragmented space in the other end (which windows does use!)
Here's a model:(X=used, - = space)
Windows want to use this area which has LESS space.....................................................All the space is here, but windows is not using it!
The diskmap was all green before the copy, now you can see it is red (fragmented) where files already existed, but the bottom has not been used.