ITunes was discontinued since macOS 10.15 Catalina. Follow the instructions to install iTunes on your Windows 10/11 computer. After downloading, click the iTunes64Setup.exe or iTunesSetup.exe file to launch the iTunes installer.Click the Download button to download the iTunes 64-bit or 32-bit installer. Here you can see the download source of iTunes 12.10.11 for Windows 64-bit or 32-bit.
If you can’t access the Microsoft Store, you can follow the steps below to download iTunes from Apple's official website. iTunes Download for Windows from Apple Official Website
If you can't access Microsoft Store, you can go to in your browser, and click the 'Download iTunes 12.10.11 for Windows 10 (64-bit)' or 'Download iTunes 12.10.11 for Windows 10 (32-bit)' link to get iTunes.