Apple, iCloud, etc. know my new email. But iTunes demands I use my old email and password to authorize the new computer. AND THIS ON THE DAY I GOT KILLER NEW SPEAKERS . . .
I'm on 12.2.2.25.
MacBook Pro, OS X Yosemite (10.10.2), More RAM added
Change AppleID - https://appleid.apple.com/cgi-bin/WebObjects/MyAppleId.woa/ then > Manage Your Account
To continue to change it for iTunes:
Select the iTunes store in iTunes.
Click the account name at top right, sign out then sign back in.
Apple ID Support - http://www.apple.com/support/appleid/ -> Apple ID FAQ http://support.apple.com/kb/HE37
Change AppleID - https://appleid.apple.com/cgi-bin/WebObjects/MyAppleId.woa/ then > Manage Your Account
To continue to change it for iTunes:
Select the iTunes store in iTunes.
Click the account name at top right, sign out then sign back in.
Apple ID Support - http://www.apple.com/support/appleid/ -> Apple ID FAQ http://support.apple.com/kb/HE37
Nice, clear explanation that even a 74-year-old could follow after two solid days battling with a new computer. THANK YOU!
Only iTunes doesn't know my new email, won't let me use iTunes on new computer
