OK. Thank you.
Perhaps you get an error message, or have trouble getting a veriaftion code
See if anything here can help:
Sign in and use iCloud.com - Apple Support
You might need to set your PC up for iCloud ?
Apple support's article: Set up iCloud on all your devices - Apple Support
Eg: says:
"Set up iCloud on your Windows device
To use iCloud for Windows, you must set up iCloud on an iPhone, iPad or Mac, then follow these steps.
- If you don’t already have it, download iCloud for Windows from the Microsoft Store. See the Apple Support article Download iCloud for Windows.
- Open iCloud for Windows.
- If you’re asked to sign in, enter your Apple Account email address or phone number, then enter your password.
- For each app or feature, click Sync [app or feature] or Not Now in the bottom-right corner.
- For certain apps and features, you can also adjust Advanced Settings or install extensions during the setup process.
- Choose whether to share iCloud analytics, then click Finish Setup.
- For more information, see the iCloud for Windows User Guide. "
More info: What is iCloud for Windows? - Apple Support
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Else, if iCloud has already been set-up on PC:
Wondering which browser you are using on the PC.
If you have one, try a different browser
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If needed: You could reach out to contact the iCloud Support Team:
(There is a "Get Support" link (online chat, phone, eMail etc) at the bottom of their webpage (link below):
iCloud Support website: iCloud - Official Apple Support