I'm upgrading from a 120gb PNY SSD to a 500gb Samsung 850 SSD. I cloned the 120gb SSD using EaseUS Todo Backup onto the larger SSD. But it seemed to copy the setup of my smaller drive. So on my larger SSD, I have 354gb that is unallocated. How can I merge the primary partition and the unallocated? ![disk properties view][1] ![Disk Management view][2] ---------- **Update** When trying to extend the volume via disk management, I get the following message: ![disk management extend volume][3] [1]: https://i.sstatic.net/riDJe.jpg [2]: https://i.sstatic.net/uNcYb.jpg [3]: https://i.sstatic.net/XThPC.jpg