Assume that you have a Windows Server 2012 R2-based Hyper-V server. A Windows Server 2012-based guest operating system that has integration services up to date and that uses Single Root I/O Virtualization (SR-IOV) is running on the server. After you restart the guest operating system, Hyper-V Manager incorrectly reports the integration services state of the guest operating system as Update required.
This is a known issue of Windows Server 2012 R2. Except for the status report, there are no negative effects to the Hyper-V system.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.