How to solve "apple application support not found" for iTunes?

When you ask a computer related question, you should specify which operating system you’re using. If you’re using Windows, this should help. I’d try the fix suggested by Cr4z33 first.

The wonderful thing about apple.com is they have answers to all your questions right there on their website if they don’t have the answer there if you go into one of their stores their people can answer any question you have thats why I went full apple products right down to my computer. I hope the below link helps I am not fully sure what you are looking to do since you can go from device to device with your purchased music and movies and not lose a thing as long as you know your log in id.

http://www.apple.com/itunes/how-to/

Nevermind, I found the answer. I uninstalled and reinstalled quicktime. Thanks for your answers.