Tweak UI is a free user interface customization application released by Microsoft to help with customizing the Windows operating system. Although it is not supported by Microsoft, Tweak UI offers a more convenient way to adjust settings that would otherwise require manual registry editing. Most significantly, the software enables users with older, slower systems to turn off components of the operating system, such as menu fading, drop shadows, and cursor shadows to improve performance. Tweak UI also includes many features for customizing the way various aspects of the Windows interface function, such as the taskbar, desktop, and start menu. The program also allows users to move the location of special folders in Windows, such as My Documents, Music, and Pictures, as well as other system folders. It also offers tools that help users repair components of the Windows operating system, such as icons, hotkeys, the font folder, and file extension associations. Tweak UI can be used to disable AutoPlay on one or more drives as well. Tweak UI provides the capability to set up Xmouse for those familiar with the X Window System. Note: This tool is for use with Windows XP. It is not designed for Windows Vista.