Click with the left mouse button the menu "start". Select "Run", type dxdiag and click OK. This will launch the built-in diagnostics tool Windows, it will be possible to find out the details about the acceleration of computer systems. Also call the utilities, you can press the Windows key and R and then typing dxdiag.
For Windows XP. Click on the tab "Screen" or "Display". In the lower half of the window you will see the inscription: "DirectDraw Acceleration", "Direct3D Acceleration" and "AGP Acceleration". Opposite is set to the current status, i.e., enabled or disabled hardware acceleration. Next to the status button is "Disable" or "Enable". Click on it if you want to change the hardware acceleration of this service. Click on the "review" if you want to diagnose the operation of the computer.
Select the "Sound" tab. In the bottom of the window you will see a slider labeled "hardware sound acceleration Level". Move it to make changes, and then click "Test DirectSound". This is only possible in older operating systems such as Windows 2000 and Windows XP. In Windows 7 a fundamentally different mechanism of working with sound, so there is no possibility to change this setting. Press the "Exit" button after editing.
Right-click on the desktop and select "Properties" if using Windows XP. Click on the "Settings" tab, button "Advanced". In Windows 7 or Vista, also right-click on the desktop, open the menu and click "screen Resolution" and a link "additional options". In any case, it will open the menu properties. It select the tab "Diagnostics". You will see a slider by moving which you can change hardware acceleration. In Windows 7 to do this, first click "Edit". Don't forget to save changes by pressing "Apply".
Restart the computer to use hardware acceleration. Update driver for video card, sound card and DirectX on your computer. This will allow you to fully use the capabilities of the PC.