I don't know how many times I've checked virtual memory settings while doing a clean and tune and found that they were set to values that either didn't allow a large enough swap file or made the minimum size much larger than it needed to be which just wastes disk space. I know that properly tuned virtual memory settings are supposed to increase performance slightly but lately I've just been going with the system managed size and letting Windows worry about it. I haven't really noticed any difference in performance with most of the machines I've set that way compared to trying to find the optimal values to be set manually.