WIndows 10 Creators update & iCloud
I did a forced upgrade of Windows 10 Creators Update on a PC running iCloud 6.2 and Office 2016. All other updates up to date.
Totally broke iCloud and made the add in useless. I deleted iCloud and reinstalled and still no luck. You'd think MS might test for this before they release. Naaaaah. I rolled back with no issues.
iPhone 5, iOS 10.3.1