Intel video driver installers (for example, the 82845G) add a few annoyances to the user’s machine: a system tray icon (igfxtray.exe), a hotkey processor (hkcmd.exe) and entries to the Windows desktop context menu. Apart from needlessly duplicating the Display Settings applet’s functionality, this eats resources and increases the time it takes to display the desktop context menu. Here’s how to remove these annoyances:

• From HKLM\SOFTWARE\ Microsoft\Windows\ CurrentVersion\Run, remove the IgfxTray and HotKeysCmds values.
• From HKCR\Directory\Background\ shellex\ContextMenuHandlers, remove the igfxcui key.