Alternative: Search “Apple iTunes 12.6.5 direct download” on Apple Support pages.
After installation, open iTunes → Preferences → Advanced → Uncheck “Check for new software updates automatically.” download itunes 101399 for mac fixed
This means the specific installer package you are running is built for legacy operating systems (like macOS High Sierra 10.13 or older) and cannot be installed on newer versions of macOS. Apple Support Community How to "Fix" the Problem Alternative: Search “Apple iTunes 12
are often used by enthusiasts to run iTunes on newer macOS versions, though these are not officially supported by Apple. Official Downloads: download itunes 101399 for mac fixed
in your Applications folder; it contains your entire library and the iTunes Store. Sync via Finder: