My iTunes said that my computer no longer was authorized and I had to renew it, what happened?

Question

Idk what happened to my pc, but it said that i was no longer authorized and I to reauthorize it, so now i have 4 pc's that are authorized how can i fix this it just happened after i updated by BIOS, but other than that i have no other way of removing all accounts for authorized my pc, so what do i do now that i unauthorized all my pc a a few months ago and now i have to wait a year? can someone assist me?

Answer 1

Updating your BIOS probably caused iTunes to conclude you are using a completely different computer. This would occur if you were to replace your motherboard, for example.
It is best to do nothing at all about this until you reach the maximum number of authorized computers, since you can only "deauthorize all" once per twelve calendar months.
Here is the procedure. In your case you should consider the second procedure first.
For computers: You can de-authorize individual computers, but only by using those computers. Otherwise you can "deauthorize all" from your iTunes account.
Open iTunes on a computer
From the Store menu, select "View my Account..."
Sign in with your Apple ID and password.
Under "Computer Authorizations" select "Deauthorize All".
Authorize each computer you still have, as you may require.
You may only do this once per year. After you "deauthorize all" your previously authorized computers, re-authorize each one as required.
It is also possible to have mistakenly authorized a computer more than once. To fix that:
Open iTunes.
From the Store menu, choose "Deauthorize This Computer…"
Enter your account name and password.
Click OK. A message appears reading "This computer has been successfully deauthorized."
Click OK.
Repeat steps 2 through 5 above. If you see the same message reading: "This computer has been successfully deauthorized," then your computer was using multiple authorizations.
Repeat steps 2 through 5 above until you see a message reading "This computer was not authorized. To authorize this computer, play a song or video you have purchased using this account."