KVM and Windows 2008 R2 Crashing

I can't get Windows 2008 R2 to run stably on any system I've tried with different kernels and libvirt and kvm. They just keep crashing/shutting off on their own for some reason no matter if I use old or newer versions of KVM.

QEMU emulator version 2.0.0, Copyright (c) 2003-2008 Fabrice Bellard CentOS release 6.5 (Final)

Thanks for any help and advice.