Good, now do the following in the same window:
1) Automatically manage paging file size for all drivers

deselect this
2) Below this line, select the Drive where Diablo is installed
3) Now set the "custom size" to:
- Initial Size (MB): 12159
- Maximum Size (MB): 12159
4) Restart your computer - the C0000005 Error should have disappeared now
It should help.