This update for guest Virtual Machines (VM) addresses a race condition in a VM’s Network Virtual Service Client (NetVsc) which may cause a Windows Server 2016 VM network adapter on a Windows Server 2016 host to be disconnected.

Note : This fix is already included in the latest cumulative updates and it is only required for VMs still on 2017-01 Cumulative Update for Windows 10 Version 1607 (KB3213986) and that have not taken subsequent monthly updates. 

How to get this update

To get the standalone package for this update, go to the Microsoft Update Catalog website.


There are no prerequisites to apply this update.

Restart information

The VM will need to restart after installing this update.

Update replacement information

This update does not replace a previously released update.

Need more help?

Expand your skills
Explore Training
Get new features first
Join Microsoft Insiders

Was this information helpful?

What affected your experience?

Thank you for your feedback!