10 of 17Image
Now, once the base Windows 8 VM is ready to go, it's time to start tuning it for its best performance.
On the System/Motherboard tab you want to make sure you have enough RAM—2GBs for 32-bit at least 3GBs for 64-bits and that Enable IO APIC is on.
On the System/Processor tab, make sure you enable PAE/NX. And, if, and only if, you have a system with multiple core or processors, you can add another CPU to Windows 8. In my case with a six-core Intel Core i7, I gave Windows 7 two CPUs.