- Your iCloud account may become disabled in Outlook.
- iCloud calendars or email accounts may be missing from Outlook, and the iCloud tab may not appear in the Outlook ribbon.
- Outlook may prompt you to repair your Outlook settings, or the New User wizard will open.
- You may see this message when opening Outlook:
"The set of folders cannot be opened. The information store could not be opened."
Upgrading to Windows 8.1 changes your Outlook mail profile. Opening Outlook after upgrading causes Outlook to repair itself, sometimes creating an entirely new mail profile. Outlook may not automatically associate your iCloud account with the changed or new profile. Here are a couple solutions.
Sign out and back in to iCloud Control Panel
Signing out of iCloud Control Panel and signing back in will reconfigure Outlook for use with your iCloud account.
Important: Any attachments you added to calendar events from Outlook will be lost. All of your other data is stored in iCloud, and will be downloaded to your PC when you sign back in with iCloud Control Panel.
- In Windows 8.1: Go to the Start screen, click the down arrow in the lower left corner, then click the iCloud app.
In Windows 8: Go to the Start screen, then click the iCloud tile.
In Windows 7: Choose Start menu > All Programs > iCloud folder > iCloud.
- Click Sign out.
- When prompted to save or delete your data, click Delete. If prompted to view your iCloud Photos folder, click Cancel.
- Sign back in to iCloud Control Panel. Select the features you want to enable including Mail, Contacts, Calendars and Tasks.
- Click Apply, then close the iCloud Control Panel.
- Open Outlook.
Switch back to your original mail profile in Outlook
Alternatively, you can switch back to your original mail profile. Be very careful not to delete any of your mail profiles. Deleting a profile can lead to data loss. Learn How to Configure Outlook 2010, Outlook 2007 to Open a Specific Mail Profile. These instructions also work for Outlook 2013. Learn how to open the Control Panel in Windows 8.1.