You can have a max of 5 authorized computers. all this means is that iTunes only lets you buy and listen to your music on one of these 5 (or less) computers. If you deauthorize it, you will no longer be able to do this, but it frees up another computer to be authorized. to reauthourize it, go to Store-Authoize computer. Enter your accont name and password and your computer will be authorized again.
There is no way you could do that sorry.
Purchases you make from the iTunes Store can be played on up to five computers that you authorize using your iTunes Store account name and password. To authorize or deauthorize a single computer, choose Authorize Computer or Deauthorize Computer from the Store menu. If all five authorizations are being used, you can deauthorize all your computers at one time by choosing View My Account from the Store menu and selecting Deauthorize All.
No, this simply retards your iTunes on that computer from Home Sharing, and other similar features.
yes.
Why does iTunes lose your music library?If you have put any new music on your iPod lately, your computer could have synced your iPod and deleted all of the music.
Hi! Launch iTunes on the computer you are using. Log into the iTunes store. Once you're logged in, click on your account name in the upper right corner. (You'll probably have to re-enter your password) Once you are looking at your account information, there is a section about the number of computers you have authorised. I don't know if you can de-autho a particular one, but you can de-autho all of them at once. Then go back to re-autho the ones you want to use. It's a bit of a pain to do it that way, but it's the only way I can think of! For what it's worth, I had to do the same thing recently. I didn't lose any of my music or videos!!
If the itunes is properly updated it will ask you if you would like to transefere the music onto the new itunes on the new computer. and then all your music will be on the new computer:)
No, not unless you delete it from your computer
You have probably reached the authorization limit on your account, and will need to deauthorize some other computers. See the related questions for more info.
No, because that will download there Itunes onto yours and you will get all their music and lose all yours.....Unless you want to lose all your music I recommend not doing this.
The computer will ask you if you want to transfer all your songs on your iPod onto that computer, or if you want to sync all the songs on that computer to your iPod. (You will lose all your songs that you had before though.)If you are talking about a computer without iTunes, it will just charge.