In the search box, type Performance Information and Tools, and then, in the list of results, click Performance Information and Tools. Open Performance Information and Tools by selecting Start > Control Panel. Here’s how to adjust all visual effects for best performance: You can also adjust your computer for better performance by disabling some of the visual effects. Try to close any programs and windows that you are not using. Having multiple programs, browser windows, or email messages open at the same time can use up memory, and cause performance issues. Method 2: Adjust visual effects for better performance If installing the latest updates does not resolve the issue, continue to method 2. Update a driver for hardware that isn't working properly in Windows Vista

Update a driver for hardware that isn't working properly in Windows 7 To update to the latest display driver for your graphics hardware by using Windows Update, click the link specific to your version of Windows and follow the steps in that article: Method 1: Update to the latest display driver for your graphics hardware To resolve this issue, follow the steps in the methods starting with method 1 and then proceeding with method 2 and method 3 if the solutions do not resolve the issue. For more information about the cause of the issue, move to the More Information section. This article introduces three methods that you can use to troubleshoot the 'display driver stopped responding' issue.

Windows 7 fix display driver