How to deauthorize all computers linked to one iTunes account

iTunes allows only 5 computers authorized to an account at a time.  If you’ve reached the limit, but have lost/upgraded/broken one of the previously-authorized one of the computers on your account, do not fear!  You can still deauthorize that computer.  Unfortunately, you’ll have to deauthorize ALL computers from your account in order to do it.  Never fear though, you’ll be able to authorize your current computers manually, afterward.

To deauthorize all computers from your iTunes account, use the following steps:

  1. Open iTunes
  2. Open the iTunes Store via the left side bar in iTunes
  3. Click the Account button and sign in
  4. Click the Account button again, where your ID appears
  5. Enter your password
  6. Click View Account
  7. In Account Information -> click Deauthorize All

Don’t forget to then manually authorize any computers you want attached to your account.