Hi everyone, until a few days I used only the free version and cannot remember any major problem. I have upgraded now to 2.221-993 pro and ran already into some weird behavior. The defrag does not get past 1%. The circle keeps on going round. I am using Windows 10 Pro 64 bit. I have used defrag vss stop and Windows activated or deactivated automatic write cache emptying. The process does not stop when I stop defrag and I have to kill it hard with Process Explorer. This is a bit frustrating.