Latest Windows 10 update kills iCloud

I use iCloud to sync my Outlook calendar and contacts across two Windows 10 PC's, one Surface Book Pro 4, and a Lumia 950 Windows 10 mobile Phone.  My computers and Surface Pro just updated Win10 to 15063.413 and the Lumia just updated to 15063.414.

And now iCloud stopped working.  I was able to get Outlook to work on the PC's and the Surface Pro by reinstalling the iCloud desktop app and then reactivating it on Outlook on each device.  But the calendar and contacts on the Lumia rely on Calendar and People app built into Windows 10.  iCloud shows a "Attention required" message.  But it can't be fixed.  I've tried deleting it and adding it back but no luck.  I've tried a soft reset but no luck.

Someone suggested a hard reset but I don't want to do that if I don't have to.  Right now I'm running two identical calendars.  One on Gmail that I can sync with my phone in the meantime and one on iCloud that syncs on everything else.

Anyone else encounter this problem and if so, were you able to fix it?

***Post moved by the moderator to the appropriate forum category.***

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Answer
Answer

I use iCloud to sync my Outlook calendar and contacts across two Windows 10 PC's, one Surface Book Pro 4, and a Lumia 950 Windows 10 mobile Phone.  My computers and Surface Pro just updated Win10 to 15063.413 and the Lumia just updated to 15063.414.

And now iCloud stopped working.  I was able to get Outlook to work on the PC's and the Surface Pro by reinstalling the iCloud desktop app and then reactivating it on Outlook on each device.  But the calendar and contacts on the Lumia rely on Calendar and People app built into Windows 10.  iCloud shows a "Attention required" message.  But it can't be fixed.  I've tried deleting it and adding it back but no luck.  I've tried a soft reset but no luck.

Someone suggested a hard reset but I don't want to do that if I don't have to.  Right now I'm running two identical calendars.  One on Gmail that I can sync with my phone in the meantime and one on iCloud that syncs on everything else.

Anyone else encounter this problem and if so, were you able to fix it?

***Post moved by the moderator to the appropriate forum category.***

I'm having the same exact problem on my Lumia 950 after updating to the latest windows build. However, the issue exists because of Apple's new security requirements. See this: http://www.macworld.com/article/3197439/security/apples-new-icloud-security-requirements-how-it-affects-you-and-the-software-you-use.html

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Last updated January 30, 2020 Views 2,289 Applies to: