The post show you how you can manage the page file setting via a fairly simple WMI script. “To begin with, how does the system determine the size of the page file?  The short answer is that it depends on what operating system we are looking at.  On Windows XP and Windows Server 2003 the algorithm defines the page file using the following parameters when the System Managed setting is selected:  Initial Size: 1.5 x RAM, Maximum Size: 3 x RAM.  On Windows Vista, the algorithm changes slightly and is more dynamic.  If you have 1GB of RAM installed, the maximum page file size is RAM + 300MB.  If you had 4GB of RAM installed however, the maximum page file size is 3 x RAM.  Based on the resources that the system has (RAM / Disk Space), the system can adjust the page file size following a reboot if more memory is added or additional disk space becomes available.”

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