Defraggler isn't even defragmenting. in Defraggler Discussion Posted May 19, 2015 · Report reply Can you try this and let me know if it works: http://forum.piriform.com/index.php?showtopic=43118&do=findComment&comment=260396 That's exactly what did it. None of the other options even mattered (VSS, custom). This sole thing is covering the issue. What an odd bug.