Open iTunes when connected option

See Open a different iTunes Library file or create a new one - Apple Support.

The library is usually in C:\Users\<User>\Music\iTunes.

Or restore the previous version of the Preferences folder.

tt2

In the past the symptoms you describe might have been fixed by resetting the iTunesPrefs.xml file. iTunes 12.5.1.21 introduced a change with the way preferences are saved. It seems that what used to be stored in:

C:\Users\<User>\AppData\Roaming\Apple Computer\iTunes\iTunesPrefs.xml

is now stored in a number of files spread amongst these folders:

C:\Users\<User>\AppData\Roaming\Apple Computer\iTunes\Cookies

C:\Users\<User>\AppData\Roaming\Apple Computer\Preferences

C:\Users\<User>\AppData\Roaming\Apple Computer\Preferences\ByHost

(There could be others)

If preferences aren't being saved then try right-clicking the iTunes shortcut and using Run as administrator. Doing this once may resolve things. Otherwise try holding down Ctrl+Shift as you start iTunes to launch it in its own safe mode which again may sometimes help. Otherwise if these three folders don't exist on your system creating them may allow iTunes to save its preferences properly. Alternatively deleting those that you do have may allow them to be recreated with the right permissions so that changes are stored in future.

Type %appdata%<return> in Explorer's address bar to reach the Roaming folder without having to display hidden folders.

tt2

Try right-clicking on the iTunes shortcut and using Run as administrator.

tt2

You're welcome. 🙂

tt2