The latest version of iTunes now comes installed with macOS Mojave. Upgrade today to get your favorite music, movies, TV shows, and podcasts. iTunes is also where you can join Apple Music and stream — or download and play offline — over 50 million songs, ad‑free. Nov 25, · How to authorize your computer in iTunes on Windows Authorizing your computer in iTunes gives it permission to access all your content. You can have up to five devices authorized in your name. Here's how to authorize your Windows 10 PC, and here's how to deauthorize your Windows 10 PC. Launch iTunes from your Start menu, taskbar, or slicelive.com: Simon Sage. Following user complaints, Apple made available an older version of iTunes that users can download and use on their Macs and bit or bit PCs. This iTunes version returns the ability to download and install apps to your computer. Subsequent iTunes upgrades are not applied automatically. Aug 16, · Hi, This is the extract from download previous Purchases: On a Mac or PC. Open iTunes. If you’re not signed in, sign in with your Apple ID. From the menu bar at the top of your computer screen or at the top of the iTunes window, choose Account > Purchased.