If you see 'The folder cannot be shared' when you use iCloud for Windows 11.1 and later
Here’s what to do if you see an error message that says “The folder cannot be shared from this device because it contains files that are not downloaded. Please share using an iOS or macOS device.”
Move the shared-to-me package file, download the folder, then try to share it again
From the Windows File Explorer, open iCloud Drive.
In the folder that you want to share, look for a file that has a size of 0 KB. If you don't see it, look in any sub-folders that you have.
Drag and drop that file to another location within iCloud Drive.
Return to the folder that you want to share. Right-click the folder and choose “Always keep on this device.” All the items in the folder start downloading. When the download is complete, a checkmark appears.
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