Use the Minitool Partition Wizard software that Enmotus recommended in their AMD StoreMI User guide or FAQ. Just right click on the C: Drive and press the MOVE/RESIZE button. Move the slider towards the left to where the "unallocated space after" says to the total amount of storage of your ssd plus 2gb. Apply those settings on the top right hand corner. Restart now. You'll see a different screen when you boot up but that's okay. It's just the software doing its thing. Then, when it's done. You'll should be booting up windows 10 and see that there's unallocated space right next to the C: Drive. "Remove Fast Media" and then it should probably work now.