Defrag and Optimize Drives – WIN 10 – Problem.

My Data D: Drive is a 2T HDD Internal Drive.  It has always been set to Optimize automatically once a week.  It has always shown as 0% Fragmented until yesterday.  Now it shows 70% Fragmented “needs Optimization”.  I’ve manually run that program a dozen
times and it continues to say 70% Fragmented.  I have 2.5 GB on this 2TB HDD.  What’s happening with this “Optimize” program?  I added nothing to the drive before this problem began.

WIN 10 PRO – Version 1607. Build: 14393.321

Source: Windows Support

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