It is HIGHLY suggested you not do so... HOWEVER: On the desktop, right click "My Computer" Select "Properties" from the provided selection list. Click the Advanced Tab on the top right of the window Click the "Performance Options..." button Click the Change button, the "Virtual Memory" window will open. At this point you can select the drive from the provided list and then type in the amount of memory you want dedicated to the swap file in the provided text boxes. A box is provided for the initial size and the maximum size. Simply enter the amount and click the Set button. My personal belief is that using the same value for both the initial and maximum would improve performance and cut down on possible fragmentation.