Windows Aero is sleek and looks great but, it can hinder the performance of your system if you have limited RAM or a slower processor. Here are a few simple changes that can boost system performance.
Right click your desktop and click “Personalize” .
Click “Window Color and Appearance”.
Uncheck the box next to “Enable Transparency”.
This will give your system a little boost but if you want to go all out, you can turn off all of the Aero effects. To do this, follow these steps.
From the “Windows Color and Appearance” box select “Open classic appearance properties for modem color options”.
On the list under Color scheme select “Windows Vista Basic”.
This will give a slower system a noticable poerformance boost.