Exchange VM Hangs During Updates

I haven't run into this yet, but it appears that in some cases, Hyper-V virtual machines running Exchange Server will hang when installing updates. Specifically this seems to occur when running updates for Hyper-V integration services.

There are reports of KB3037623 specifically causing this issue.

• KB3037623

The fix is to:

1. Disable the Exchange services
2. Apply the update
3. Reenable the Exchange services

This blog posting provides detailed steps:

• http://blog.scng.si/exchange-server-vm-becomes-unresponsive-while-updating-hyper-v-integration-services/