This article explains how to check iCloud email using any web browser or Windows 10 PC.
How to Check iCloud Email
Your iCloud account is compatible with the built-in Windows 10 Calendar and Mail apps, so you can access your email, appointments, and reminders using your PC's standard features. Follow the steps below to set up iCloud email in Windows 10.
Add your iCloud account to Windows. Type settings into the Windows search box, which is located in the lower-left corner of the screen, next to the Start button.
When the pop-out menu appears, select Settings: Trusted Microsoft Store app under the Best Match heading.