Windows Tweaks
Here are some tweaks you can use to keep your Microsoft Windows installation running smooth and quick. Remember to keep a current backup of your operating system before employing any tweaks you are uncomfortable with.
HOW TO INSTALL WINDOWS XP ON A WINDOWS VISTA MACHINE (DUAL BOOT)
PUT RUN BACK ON THE VISTA START MENU
WHY IS UAC IMPORTANT TO VISTA SECURITY
BOOT YOUR COMPUTER WITH ALL OF YOUR CPUS/CORES
OPTIMIZING YOUR SWAPFILE