HarddiskVolumeShadowCopy6

Hello HV,
Thank you for using Acronis software!

If you don't need synchronization you can simply logout from your online account and it will stop all the synchronization tasks. You can also delete all synchronization versions by choosing the respective settings in synchronization task or set automatic cleanup options the way it is described here.

Another thing is C:\HarddiskVolumeShadowCopy6. Actually it doesn't concern the synchronization tasks. It' is the link created by one of the native Windows services - Volume Shadow Copy . Since it's a native system option you can delete its links by system tools (Start-> All programs -> accessories -> system tools -> Disk cleanup -> OK -> More options -> System Restore and Shadow Copies clean up). But please remember that it'll delete all the Windows Backup images too.

Please let me know if you still need some information.