Make sure that you're logged in to your computer as an administrator
Install the latest Microsoft Windows updates
Download the latest supported version of iTunes from the Microsoft Store
After you download iTunes, you can check for updates to iTunes in the Microsoft Store.
If you can't download or update iTunes from the Microsoft Store, contact Microsoft for help.
Disable conflicting software
Some background processes can cause issues that prevent applications like iTunes from installing.
If you installed security software and are having issues installing iTunes for Windows, you might need to disable or uninstall security software to resolve the issues.
Restart your computer
After the restart, try to install iTunes again.
Get more help
If the steps in this article don't resolve your issue, you might be able to find a solution by searching the Microsoft support website.