How to Install iCloud for Windows
To set up iCloud for Windows for use with the iCloud Passwords Chrome extension, you’ll need to download iCloud for Windows from the Microsoft Store before you can get the extension working.
Open the start menu, search for “Microsoft Store” and open the application. In the Search field at the top-right, type “iCloud” and press Enter. Install and open iCloud for Windows. Your Passwords field will likely be grayed out. Click the Approve button next to Passwords and enter your Apple ID information to approve password sync on your computer. Check the box next to the Passwords field to enable iCloud password sync on your computer.
How to Install the iCloud Passwords Chrome extension
Once iCloud for Windows is set up and running, all that’s left to do is install the Chrome extension, and you’ll have access to your familiar passwords whenever prompted.
Open Google Chrome, head to the web store, and add the iCloud Passwords browser extension to Chrome. Once installed, make sure to pin the extension to Chrome by clicking on the Extensions puzzle piece at the top-right of your browser and toggling on iCloud Passwords. Now, whenever you need to fill in account information, your username and password will be auto-filled, and as you create new accounts, you will be prompted to add these new credentials to iCloud, too.
A Note for Longtime iCloud Windows Users
If you’ve used iCloud for Windows before, you may need to reinstall or update the application first. This Keychain functionality is unique to iCloud on Windows 10 and requires iCloud for Windows version 12 or later.
The best way to make sure you have the correct version of iCloud is to download iCloud from the Microsoft Store and keep this application up to date. In the iCloud for Windows app, you can see your software version in the application window’s top-right corner.