Outlook detected a Personal Address Book that is no longer supported. Click OK to migrate these entries to your default Contacts ...

Outlook detected a Personal Address Book that is no longer supported. Click OK to migrate these entries to your default Contacts folder. The migration will take a few minutes and cannot be canceled.

Note: If you share your Contacts folder with other people, the entries migrated will also be shared. You can select a different contacts folder or create a new folder.