So what is there to fix if it works for many others.. For every person that posts they have a problem.. there are 20 who have no problem and hence no post.. you are a minority.. Get modern with your system lol.
Also as steve said.. upgrade to 64bit then update framework 4.0 and 4.5.
Also run as Admin and avoid throwing nades or using knives while running the hack. I also highly suggest not using no recoil and semi auto at the same time... sucks up the memory even more.