The information in this article applies to: Microsoft Windows XP Microsoft Windows 2000 SYMPTOMS You may be unable to install driver updates from the Microsoft Windows Update Web site. When you try to do so, the installation is unsuccessful. CAUSE This problem may occur if you have a large number of INF files in your %windir%\Inf folder. In this case, Windows incorrectly searches the whole INF folder for information about which drivers to update instead of searching only for currently installed drivers. RESOLUTION To resolve this problem, install the 814033 update.