Microsoft released this hotfix for Hyper-V on March 8th but it just appeared in my feeds.
“Consider the following scenario:
- You enable the Hyper-V role on a computer that is running Windows Server 2008.
- You connect a removable disk to the computer. For example, you connect a USB flash drive to the computer.
- You perform a Volume Shadow Copy Service (VSS) backup operation for a volume of the computer. The volume contains some virtual hard disk (VHD) files for some running virtual machines (VMs).
- You try to safely remove the removable disk after the backup operation is completed.
In this scenario, you cannot safely remove the removable disk. Additionally, you receive a message that states that the volume is being used.
This issue occurs because of a handle leak in the storage VSP driver (Storvsp.sys)”.