Sometimes Windows 10 detects issues & repairs at boot. I have experienced this & know/read about this. You too must have read/know about it. This may mess Rollback & so system not bootable. Any query on Rollback, Imaging & Backup software, I request info from the expert on these software at Wilders i.e users "TheRollbackFrog" & "Peter2150". I asked the above & other queries recently on Wilders in Rollback & Macrium threads. You can take a look there.