Hi angeldame,
Thanks for posting in Apple Support Communities.
We understand that you're getting a message about iCloud initializing that won't progress further. If you can't close iCloud and restart your computer. Check whether your computer and iCloud needs updates. Turn off any security software that could interfere with the app.
How to tell if your security software might be causing an issue
Security software created by companies other than Apple can prevent iCloud for Windows or iTunes from connecting to Apple servers or to devices. Sometimes, you might see a numeric error message when you sync, update, back up, or restore your device.
If your security software is causing an issue with iCloud for Windows
* You can't sign in with your Apple ID.
* You see "Verification Failed: An unknown error occurred" or "An error occurred during authentication. Please try again."
* You see "Your setup couldn't start because your username or password is incorrect" or "Your setup couldn't be started because the iCloud server stopped responding."
* iCloud services won't update.
If your security software is causing an issue with iTunes
* Your iPhone, iPad, or iPod touch aren't recognized in iTunes, or they won't back up, restore, update, sync, or activate.
* You see iTunes Errors 4, 6, 1630–1641, 3000–3999, or 9000–9999*.
* You can’t connect to iTunes Store to buy or download content.
* iTunes won’t open.
Resolve issues between iCloud for Windows or iTunes and third-party security software - Apple Support
Regards.