I have been using iCloud for my Address Book and Calendar in Outlook 2013 for a couple of years. I just had an automatic Windows 10 update from Microsoft and after the update I get a message when I try to access my address book or calendar. " The set of folders cannot not be opened. The information store could not be opened."

I can open the iCloud address book and Calendar on the machine but not in the Outlook app. So I have to copy and paste addresses into my emails.



This is ridiculous!! Any idea how to recover?

Does anybody know how to start again to sync iCloud Address Book with Outlook 2013 after corruption? All I got was an ad for software.

I was finally able to get it working by deleting the icloud account and datafile from Outlook and reinstalling it.

But now just I few weeks later, I get another Win 10 update and I have to set up Outlook again!. Once I did, I have lost 3 months of sent items and while I have the outlook calendar and address book set up ok, when I write a new email and check on "To" it comes up with a blank address book. Why doesn't it use the icloud address book that is set up in Outlook?

What is going on with Microsoft?