i use this for my work Windows 10 machine. I recently upgraded from Windows 7 to 10 and also from Windows iCloud 6.2.2 to 7.4. I can’t remember which came first. I noticed that iCloud for Windows was not syncing. Chrome bookmarks via iCloud extension were there but stale. Changes to them on the Win machine we’re not getting pushed through and vice versa. iCloud Drive on the Windows machine shower “folder empty”. Contacts in Outlook were not updating but showing stale. After many uninstall and reinstalls, I decided to downgrade to 6.2.2 on Windows 10 and its works. I understand there were security concerns with 6.2.2 so this is not ideal. Is there some known incompatibility with 7.4 and Win 10? Is there a security setting in 10 that blocks the connection? Anyone familiar with this issue and/or what the 6.2.2 security issues was? Thanks.