Optimize Drives doesn't work

Hi Joscelin.Trouwborst,

Ideally you will not be able to defragment a drive if there is less than 15% free space.

Try to free up space on the drive you are trying to optimize to about 20% and then then try

to optimize the drive.

You can also analyze the drive before optimizing.

Heres some beyond the basics information when it comes to Optimization

http://windows.microsoft.com/en-US/windows-8/optimize-hard-drive#1TC=t1

http://windows.microsoft.com/en-US/windows-8/improve-performance-optimizing-hard-drive

Please get back to us for further assistance.

What you suggested make sense, of course, because it's too obvious. So, it was not an expected answer from a Microsoft expert. Like always, non-Microsoft people find the problem and, in most of the time, solve the problem. I really don't know why you people from Microsoft are doing here because you all are lost in everything.

I have cleaned out part of my Music Library. I have more than 20% free disc space now. I ran Optimize Disks. This time I happened to see it finish pass 1 with 100% consolidated for a split second. Then again, after finishing, it shows that my Boot drive should be optimized because it is 20% fragmented. Strange to me. Anyone a clue?

I have had the same problem and it was stuck at 18% but little by little over a course of a week or two, it has gotten better (without me doing anything to try and fix it) and is now down to only 7% fragmented (about a few days ago).   I'm guessing that the Optimize Disk program in Windows 8 is not perfect and doesn't get full access to all files because the files are running/open.   I'm also guessing that with each new reboot, on startup, it does some of these tasks and succeeds, before the service or files are in-use...thus the slow process of getting down to 0%.

Actually, I just checked again, and it is now down to only 4% fragmented; I expect that it will resolve itself down to 0% within a week.

Should have made the exact calculation right away. I have a near 18% free disc space. Seems the 15% you quote may not be the thing. Has this changed since Win7? I hardly have more user files than when I was using Win7.

I am cleaning up my music files. Let's see what this brings when I am at 20% free disc space.

Is there a help topic about this? I have not been able to find it.

Thanks, Yosce

Hi Joscelin.Trouwborst,

Ideally you will not be able to defragment a drive if there is less than 15% free space.

Try to free up space on the drive you are trying to optimize to about 20% and then then try

to optimize the drive.

You can also analyze the drive before optimizing.

Heres some beyond the basics information when it comes to Optimization

http://windows.microsoft.com/en-US/windows-8/optimize-hard-drive#1TC=t1

http://windows.microsoft.com/en-US/windows-8/improve-performance-optimizing-hard-drive

Please get back to us for further assistance.