I did a fresh install of iTunes and while the Windows 7 upgrade process does warn you to deauthorize iTunes before the install (see link below) it does not do the same for a fresh install.

Windows 7 upgrade - deauthorize computer in iTunes - what gives?

I have a backup of my files on Vista, so is there a way to deauthorize iTunes from that installation so that I can authorize iTunes for Windows 7 without it counting against my 5 devices?


The only way to do this would be to deauthorize your account with all machines. See my answer to iTunes Always Asks to Authorize:

From the Store menu, select View my account. Once you login, go down to Deauthorize all computers and follow the prompts. Then Authorise your computer again using your favourite method. Hopefully, everything should be working fine after that.

I think you can only do this once per year, but I have never heard that directly from Apple.

  • I wish I could vote for this answer more than once. So helpful. Thank you. :) – Adam Tuttle Jun 6 '10 at 21:03

joshhunt's answer is correct, but the "Deauthorize all accounts" link only appears if you have reached the maximum number of authorized devices (5).

I'm personally pretty picky about having an authorized device being that laptop that crashed 4 years ago and impossible to manually deauthorize singularly, but unfortunately, thats the way it is. An extremely long and unnecessary solution would be to set up a WinXP virtual machine, clone it a few times, then authorize all of them to the maximum your account would allow, then deauthorize them all, reauthorizing only the machines you use. But like I said, thats a lot of work for something that isn't necessary. Its best to let it be until the point you run out of authorizations, then fix the problem.

Regarding backups, those are tied to the account, not the machine. It is possible to restore a backup to a machine you aren't currently authorized with, but in the process, you will end up authorizing it with your account.

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