The memory subsystem is always one of the most important systems to tweak within an OS. Not only does it control the RAM, but it also dictates much of how the other subsystems within the computer communicate with each other. Since Windows 2000 is the ´performance´ OS of the Microsoft world, it makes sense to squeeze all the speed out of the memory subsystem as possible, hence this article. Within, we will be covering such topics as removing some of the bloat from the OS and tweaking the registry. The different tweaks occur in different areas, but all affect the OS´s memory usage. We´ll start out with some BIOS tweaks (that are good for just about any PC, not just those with Windows 2000), but with the other tweaks, make sure you´ve logged off your normal user account and come back in as an administrator, because otherwise some of these optimizations simply won´t stick.