Attempts to update MacBook Pro (OXS 10.9.5) with App updates from Apple Store fail because of unknown Apple ID password. Created new Apple User/Password apple ID outside Update window.
App update attempts still fail because I cannot delete unknown password Apple ID so I can use new credentials. How do I do this?
Apple Help says following, none of which work - Window/fields do not respond to clicks.
To change the Apple ID associated with your account, click Change next to Apple ID, double-click the Apple ID you want to change, then enter the new one.
To disassociate an Apple ID from your account, click Change next to Apple ID, select the Apple ID, then click Delete (-). To associate another Apple ID with your user account, click Add (+).
After you add or change your Apple ID, the Change button is disabled while OS X confirms the Apple ID password you entered.