If your computer is not performing as fast as it should be, you can do some quick fixes to speed things up a bit. One of them is turning off the Windows Aero theme.
Introduced in Windows Vista, this new experience focused on providing an elegant user experience for the Windows environment. Most modern systems can run Aero, but older systems can struggle to keep up with the graphical demands of Aero, resulting in a slower computer.
The best thing to do in such scenarios is to turn off the Windows Aero Glass theme. Doing this is very simple, just right-click your Desktop then click Personalize
This will open the Personalize Control Panel item which includes a variety of tools and options for customizing your Windows user experience.
Windows 7 includes three types of themes: Aero Glass, Basic and High Contrast themes. Aero Glass is the premier theme that includes effects such as semi-transparency of window border along with the ability to utilize desktop effects such as Aero Peek, Snaps, Taskbar Thumbnail Previews and others such as Flip 3D. Aero Glass requires that you have a GPU (graphical processing unit otherwise known as your video card) powerful enough to compose the desktop. To run Aero Glass, you need a video card that supports DirectX 9 graphics device with WDDM 1.0 or higher driver.
If you don’t meet the requirements to run Aero Glass, it doesn’t necessarily mean you cannot run Windows 7. Many older computers work just fine with the Windows Aero Basic theme which provides some of the features of Windows 7, but not the more visually stunning aspects such as the semi-transparency.
If your computer is capable of running Windows 7 Aero Glass, but performs slow, you can turn off some visual embellishments to improve the speed of the interface. To do this, click Start, type: Adjust the appearance and performance of Windows
Hit Enter on your keyboard
Select the Visual Effects tab
Here you will see a number of options available for you to choose from. You have Windows choose the best experience or you adjust according your hardware capabilities. You can even select the Custom option and uncheck options that can give you more speed while still enjoying the benefits of the Aero Glass user experience.