I showed in another post how to share photos, videos & album with Amazon Photo included in an Amazon Prime subscription.
If you use Amazon Prime Music, which is another benefit for Prime customers, it may annoy you to have its desktop app starting at every PC boot. If you look in Preferences of that application, you can find an option that should disable that “feature” if unchecked.
However, even though the first option is unchecked, Amazon Music application always started at every PC boot.
Therefore I decided to disable both Amazon Music and Amazon Music Helper applications directly from the Startup tab of Task Manager (cntr + alt + del): note that, if no tabs are displayed, you need to click on the More details icon at the bottom right of the popup window.
To disable one startup application, you need to right-click on the line displaying its name and choose Disable from the menu.
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