An issue you may run into if you’re using a newer iPad, iPhone, or
iPod touch is that you need the newest version of iTunes in order to
install the newest version of iOS on those devices. In order to
upgrade iTunes, do the following:
1. Click the Apple icon in the top left corner of your screen and
click “Software Update”
2. Your computer should search for any available software updates.
Note that on some computers, the process of searching for updates may
take quite awhile.
3. Click the button to install any software updates that are found;
you can click “Show Details” to see the specific updates that will be
installed.
4. You will likely be prompted to enter a username/password to
install updates. For most users, you can use your full name as the
username and your @adel e-mail password as the password. If that
doesn’t work, use username ADM CSD with one of the passwords e-mailed to staff on 3/8/12.
5. You’ll probably be prompted to restart your computer after updates
are installed. Restart.
6. After the restart, I’d recommend doing step 1 again, and updating
again if it finds additional updates. Sometimes updates need to be
installed in sequence, and it takes 2-3 times through the process to
get your computer fully up-to-date.
NOTE: If you have OS X Version 10.4.x, you will not be able to update
to the newest version of iTunes. To check your OS version, click the
Apple logo in the top left corner of your screen, then click “About
This Mac”. The operating system version appears under the Mac OS X
text, and is in the format 10.4.x, 10.5.x, 10.6.x, 10.7.x.
ADM Technology Blog 