Build Crashes on client's PC w/ Access Violation

Hi, I have made a build (.exe), on my windows 7 and 8 pc its wokring perfect, but on my clients pc it’s crashing when opening. Can someone help me out pointing me towards a solution?

I have three records of it. The ‘error.log’ says:

Unity Player [version: Unity 4.6.5f1_c2bb1d7d067c]

dw3d.exe caused an Access Violation (0xc0000005)
in module dw3d.exe at 0023:00000000.

Error occurred at 2015-07-08_160202.
N:\Interactieve Brochure - Digiworld3D\wetransfer-d0a617\1410134 DW3D Reimerswaal\1410134 DW3D Reimerswaal\dw3d.exe, run by Oving.
26% memory in use.
0 MB physical memory [0 MB free].
0 MB paging file [0 MB free].
0 MB user address space [3911 MB free].
Read from location 00000000 caused an access violation.

Here’s what you can do.

See this doc:
http://docs.unity3d.com/Manual/windowsstore-debugging.html ‘Advanced Debugging’, your customer must make these steps on a PC where it crashing. These steps will work for Windows Standalone as well.

When the application crashes, a dump will be generated in the target folder. You can open a dump file via Visual Studio and inspect the crash, or you can submit a bug report to Unity team and attach the dump file, along with the log file (generated by the player).