is there a fee to set up icloud for windows pc

You can access your iCloud storage either directly at https://icloud.com or by downloading and installing iCloud for Windows. Both options are entirely free. iCloud for Windows will create an iCloud Drive folder in Windows Explorer for you to access your files, and will also create an iCloud Photos location under This Computer->Devices and Drives section to access photos synced to iCloud from the Photos app.

See here to download iCloud for Windows: link-> Download iCloud for Windows - Apple Support

No. iCloud setup and the first 5GB are free. If you need more than 5GB then you can upgrade to a paid tier level for more storage space.