imovie updates
I was given this Mac from a friend and changes the administrator to myself and don't have any problem except for iMovie. when I go to download the update it ask me to enter my Apple ID and password but it will NOT let me enter my Apple ID it shows the previous users ID and I can not understand why when I changed everything to me as admin it still show their Apple ID .
iMac 21.5", macOS 10.13