Update to Latest iTunes Showing Runtime Error R6034?

If you tried installing the latest iTunes on your Windows machine and it failed with this error message Runtime Error Message R6034, try this:

Go to Control Panel > Add or Remove Programs (Windows XP) or Programs and Features (Newer Windows)

Uninstall all of these items in the exact following order:

• iTunes
• Apple Software Update
• Apple Mobile Device Support
• Bonjour
• Apple Application Support

Reboot your computer system, download iTunes, then reinstall using an administrative account or right-click the downloaded installer file and select Run as Administrator.