I put Hex on my son's laptop. But every time I run it, it just crashes. I get a crash report with a text file and this is what it says at the very top. Anyone know how to fix this?

Unity Player [version: Unity 4.5.2f1_9abb1b59b47c]

HexPatch.exe caused an Access Violation (0xc0000005)
in module HexPatch.exe at 001b:00000000.

Error occurred at 2015-02-21_211318.
C:\Users\Greylan\Desktop\HEX\HexPatch.exe, run by Greylan.
39% memory in use.
2031 MB physical memory [1232 MB free].
4061 MB paging file [3025 MB free].
2048 MB user address space [1887 MB free].
Write to location 00000000 caused an access violation.