Syncing iCloud contacts and calendars in Windows 10
How to sync your iCloud contacts and calendars with the Windows 10 People and Calendar applications.
• Open the People application
• Click the three dots next to the ‘+’ in the top left and select “Settings”
• Click “Add an account”
• Click “iCloud”
• Enter your Apple ID email address and password (the one used for iCloud and purchases on your iPhone and iPad)
• Click “Sign In”
After doing this your iCloud Contacts and Calendar should be synced with the Windows 10 applications - if you use an iCloud email address for your Apple ID then it will also sync the email.