Sincronization with passport essential

Hi, i need your help… I was happy of my passport  softwear WD Sync of my 320gb old disc, i crash it  an buy a passport essential 550 gb: It’s possible to sincronize data with it or is possible to change softwear?  I need a perfect copy of my pc ewerytime up to date with canges I do. May I just chosed the wrongh item…?!

WD Sync will not sync data from one external drive to another.  I hope you are not using WD Sync to back up your PC.  That would be a disaster.  If you were to try and sync the data to another drive, you could wipe out all the data.