Navigating Checkpoint Challenges in Hyper-V Backup Procedures


As an expert in Hyper-V environments, could you provide insight into a backup issue I’m encountering? I’ve recently established backups for a Hyper-V host that includes a Windows Server VM and a Linux VM with an unspecified distribution. The backup process, facilitated by Acronis using VSS for snapshot creation, completes successfully but issues a warning. Specifically, the checkpoint creation for the virtual machine fails at the Hyper-V host level, citing a Microsoft-specific error with the message: “The task was completed with errors.” Is this a critical concern that requires immediate attention, or is it safe to overlook? I am eager to delve into the details and enhance my understanding of this matter. Additionally, Acronis has directed me to consult Microsoft regarding this “Microsoft-specific error.” Could you advise on how to proceed?


In the realm of virtualization, Hyper-V stands out as a robust platform for managing virtual machines (VMs). However, even the most seasoned professionals can encounter hiccups, particularly when it comes to backups. A common concern arises when the backup process flags a warning, despite completing successfully. This article aims to shed light on such a scenario, where a Microsoft-specific error is reported during the checkpoint creation for VMs under Hyper-V.

Understanding the Warning

The warning in question typically surfaces when using Volume Shadow Copy Service (VSS) for snapshot creation, a method employed by backup solutions like Acronis. While the backup concludes without halting, the accompanying warning indicates a potential issue with the checkpoint creation for the VMs. The error message “The task was completed with errors” suggests that while the task wasn’t entirely unsuccessful, there were anomalies that might need attention.

Is It a Critical Concern?

Whether this warning is critical depends on the nature of the errors encountered. In some cases, these could be transient issues that do not affect the integrity of the backup. However, consistently ignoring such warnings could lead to a false sense of security, potentially masking underlying problems that could compromise data recovery in the future.

Delving Into the Details

To understand the implications of the warning, one must investigate the specific Microsoft error code provided. This code can offer insights into what went wrong during the checkpoint process. Common issues include conflicts with other software, insufficient storage space, or problems with the VSS writers.

Consulting Microsoft

Since Acronis has indicated that the error is Microsoft-specific, consulting Microsoft’s documentation or support channels is advisable. They can provide detailed explanations and troubleshooting steps tailored to Hyper-V’s backup mechanisms.


In conclusion, while the warning might not always signify a dire situation, it should not be dismissed outright. It serves as a prompt to investigate and ensure that your backup strategy remains reliable. Continuous learning and proactive management are key to maintaining the health of your Hyper-V environment and the safety of your data.


  • Review the backup logs

    to identify any recurring patterns or specific error codes.

  • Check the health of the VSS writers

    using the ‘vssadmin list writers’ command.

  • Ensure adequate storage space

    is available for the snapshots.

  • Update Hyper-V and backup software

    to the latest versions to resolve known issues.

  • Consult Microsoft’s knowledge base

    or support for guidance on the error code.

  • Consider a test restore

    to verify the integrity of the backup.

  • By following these steps, you can better understand the significance of the warning and take appropriate measures to safeguard your virtualized environment.

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