FAQ 000152 – In-place upgrade from Dirsync to AD connect fails

This article applies to: Office 365 Dirsync Azure AD Connect   PROBLEM You have a machine that is configured to perform directory synchronization with Office 365 via Director Synchronization Tool (DirSync) . When you attempt an in-place upgrade to Azure Active Directory Connect tool (AD Connect), you receive the following error: DirSync is configured with options that