I had to recover my Samsung Laptop to a factory image on a new hard disk. After completing the restore, I made an image using Macrium Reflect and created recovery media.
I then reinstalled all my apps including Norton 360. After that was done I tried to use Macrium Reflect to create a new image. Creating the image stalled with creating the snapshot. No errors were created in the logs. Reflect just hung and no activity was shown in task manager. Temporarily disabling smart firewall and antivirus in 360 did not help. Uninstalling 360 allowed the image to be created. Reflect uses VSS so I am assuming that 360 is blocking something just not sure what.