Hello, Goldenbrewster!
Thank you for using the Apple Support Communities!
If I'm understanding your post correctly, you wondering how you update iCloud for Windows.
Take a look at this section of the article, Set up and use iCloud for Windows:
"Update your version of iCloud for Windows
To check for updates, open Apple Software Update on your PC. To get notified when an update is available through Apple Software Update, choose Edit > Preferences, and select when you'd like to check for updates. You can choose Daily, Weekly, Monthly, or Never.
Sign out of iCloud on your PC before you upgrade and install iCloud for Windows."
I hope this information helps you!
Cheers.