One of the most import features of modern processors is ensuring the L2 and L3 cache is set correctly in your registry.
Not all CPU's will have a L3 cache.
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management]
"SecondLevelDataCache"=dword:00004000
The above value is for a specific processor, and should not be used unless your CPU has the same characteristics.
L3 cache is tricky to set and I will not dwell on its implementation, but it too will have and impact on computer performance and stability.
The correct implementation of these characteristics will improve stability of your computer, and performance.
First find what cpu is installed on your system, and what L2 and L3 cache is.
You most likely need to talk to a microsoft technician to set the L3 cache, but the above registry is perfect for L2 cache.
Please note, if your system has two physical CPU's the value you apply is just for one CPU. Reason, it is a shared pipe.