Acronis True Image 2015 18.0 Build 6055 known issues

It means that you restore an image to the new PC and try to apply drivers using Universal Boot media, however it doesn't find the Windows 7 OS on the disk and reports that there is no OS to apply drivers to. Either there was a filesystem error ( in the recovered image as well) or the code tripped on a valid FS and failed to detect the OS. Currently it is being investigated using that 'specific' image.

Installed Acronis True Image 2015.
Windows 7 64bits

Tried to make new backup, appears error message: "Unable to create volume snapshot"

Tried out several suggestions offered but applications keeps sending the same error message (48686)

I had same problem. Unable to resolve and have since gone back to TI 2014 which works just fine. (Win 8.1 64-bit GPT system)