I had this problem but I fixed it with this:

1)Right-click on computer > Properties
2)Click Advanced System Setting
3)On Advanced Tab > Performance > Click Setting
4)A new window will open > Click on Advanced Tab
5)Ok here is the tricky which you must do it correctly. Just follow this step :
a)On Processor scheduling > Tick the Program just below it.
b)And then on Virtual Memory, open "Change"
c)Untick > Automatically manage paging file size for all drives.
d)Click drive C: > Tick "Custom Size:"
e)On initial size put 7000 mb and do it the same on maximum size.
f )After finish tweaking press set and click ok
6)Run game as Adminstrator