how to deauthorize old computers

Individual computers can only be deauthorised directly on them (via the Store > Deauthorise This Computer menu option), but if you've reached the 5 computer limit then you can log into your account and 'deauthorise all' (which you can do once every 12 months) and you can then authorise/reauthorise the computers that you still have and need : authorising and deauthorising.

I read a few posts & all of them were telling me that the only way was to "de-authorise all" however I've found where you can select the individual computers to remove...

1. Open iTunes on a computer

2. Click on the iTunes store

3. Sign in with your Apple ID and password.

4. Click on the button displaying your Apple ID (top level navigation bar next to home, music, tv etc).

5. Click on "Manage Devices >" under the 'iTunes in the Cloud' heading

6. All of your authorised computers will be listed here & you can remove each one individually

7. Click Done

Hope this helps 🙂

This process got me to the list of devices, however there are only 4 devices associated with account but also says there are 5 computers authorized. Looks like deauthorizing all will be my only option as the device not listed but authorized was my work laptop to which I no longer have access.