Actually it does matter. If you don't set a static page file size, windows is always resizing the pagefile to meet demands. When you have some fragmentation on your HDD (and this ALWAYS happens eventually) and windows needs to enlarge the pagefile, the pagefile gets scattered all over your HDD thus degrading performance. So run a disk defrag and afterwards set a static pagefile. I'd say set 512MB. (both initial and maximum size) When you have over 512MB of (physical) RAM you can set 256MB. If you have more than one HDD it's even better to place the swapfile on another physical drive. This way Windows can simultaneously read data/programs from it's system partition while writing to the swapfile on the other disk. It's not much use putting the swapfile on another partition on the same physical disk though, the heads would just have to move back and forth all the time...