HT1420: Authorize or deauthorize your Mac or PCLearn about Authorize or deauthorize your Mac or PC
Currently Being ModeratedJan 9, 2013 10:29 AM (in response to virginia36)
You cannot deauthorise a single unaccessible computer.
The only way out is deauthorising all & re-authorising the ones required. But you can do this only once a year.
Here's an article for reference: http://support.apple.com/kb/HT1420
Currently Being ModeratedJan 9, 2013 10:27 AM (in response to virginia36)
If you no longer have, or access to, the computer(s) you want to deauthorise,
Log in to iTunes, go to "view your account info" on the itunes store, deauthorise all five, (Please Note: this can only be done Once every 12 months) and then re-authorize your current Computer(s) one at a time.
Authorise / Deauthorise About