Okay I've answered my own question now but I'll put it here as someone is bound to have the same issue at some stage
It seems to need access to
Hope this helps someone someday.
Chris
It seems to need access to
-
C:\Windows\System32\config\systemprofile\AppData\Local
-
C:\Windows\System32\config\systemprofile\AppData\Local.config\ImageMagick
- ImagemagickOpenCLDeviceProfile
-
magick_opencl________Intel(R)_Core(TM)_i7-3517U_CPU_@_1.90GHz_00_217c3295_64.bin (This would seem specific to my machine)
Hope this helps someone someday.
Chris