hi dfrgui.exe under w10 and w8.1 optimaze the ssd ,in short they optimaze the mft like some tools that come with ssd brands well if i run dfrgui.exe and defrag a ssd it takes few seconds , but if i open cmd as administrator and give the command line defrag C: seems that it perform a true defrag of the ssd is it a bug of windows 10 and 8.1 ? have you tried it? have tried cmd->defrag C: ? could be stopped with ctrl+c thanks
