If you have more than one physical drive in your computer, this guide is for you. The page file can take a considerable toll on your system drive; by moving the page file to a separate drive, you can increase overall performance. Learn how to move the Windows Vista page file to another drive in this guide.
Move the Page File to Another Drive
1. Press Start, right click on Computer and select Properties
2. In the left-hand pane, select Advanced System Settings
3. Click the Advanced tab and under Performance, select Settings…
4. Click the Advanced tab and under Virtual Memory, select Change…
5. Uncheck Automatically Manage Paging File Size for All Drives
6. Select the different physical drive that you want your paging file to now be stored on(e.g. D) and select System managed size and press Set. (If applicable, make sure this is the first partition on the second drive)
7. Select the drive that contains your paging file (usually C), select the Custom Size option, set the original and maximum size, and press Set
Your page file will now need to rebuild on the new drive–this may temporarily slow performance.
Note: The reason for keeping around 1GB on the OS drive is because Windows Vista needs still some pagefile space on the OS drive.