Thank you for using Apple Support Communities
I would recommend either of these two articles depending on the version of Windows you have
Removing and Reinstalling iTunes, QuickTime, and other software components for Windows XP
Removing and reinstalling iTunes, QuickTime, and other software components for Windows Vista or Windows 7
If you are using a Mac, then I would recommend downloading and installing iTunes from here: http://www.apple.com/itunes/download/
All the best,
Dear Community Specialists,
this answer is a joke, isn't it?
It's close to "just re-install Windows".
I have the same problem:
iTunes: Latest update, Firefox: Lastest Update, Java: latest update and of course PC reboot.
App bought (clicked on buy, logged in, confirmed "do you really..." with buy and after that a second time logged in., then clicked on Clickandbuy).
Firefox starts, Clickandbuy window opens.
Locked in at Clickandbuy, everything comfirmed, message received:
"Sie haben dem Anbieter bereits eine Easy Collect Autorisierung erteilt."
(You already gave the seller an Easy Collect authorization). I did a lot of times, but iTunes gives a **** about that!
Clicked on continue and then the magic happens:
Firefox jumps to: http://www.apple.com/itunes/affiliates/download/
and there I receive this wonderful message (with my iTunes open!!!):
"To download the item you just requested, you need to have iTunes."
Thanks for this wonderful message!
I can't buy any apps! (for iOS "only", I can for android, but that's a different story )
With or without spyware / tracker blocker, that doesn't make a difference.
My only solution now: "buy another phone", do you have a better solution?
Would be great to know!
Many thanks in advance!