Please Uninstall Quicktime
Apple has announced that they will no longer provide security updates or patches for a program called Quicktime. Check now, and if it's installed on your system understand that it is a known security risk.
Before long somebody will email you a cute little video of puppy dogs or kitty cats that only plays on a QT player, and when you play it it will infect your computer with a virus, or something even worse.
Simply use the appropriate program, probably "Programs and Features" in the Control Panel, and uninstall Quicktime. You'll never miss it.
If you have a video that requires QT and is irreplaceable, call or contact us and we'll help convert it to another format.