60216: Acronis Cyber Protect Cloud: backup of Hyper-V VM fails with "Failed to obtain an instance of service class 'Msvm_VirtualSystemManagementService"

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Last update: Fri, 2020-05-01 06:16


You are performing an agent-less backup of a VM located on MS Hyper-V server.

Backup fails with the following error message:

| error 0x728012: Failed to prepare for backup.
| line: 0x28314c961de7d52e
| function: MigrationManagement::MigrationManagerImpl::Backup
| $module: disk_bundle_vsa64_3917
| error 0x530001: Failed to obtain an instance of service class 'Msvm_VirtualSystemManagementService'.
| line: 0xba3fdb9882f2337c
| function: VirtualWareRaw::HyperVClientImpl::GetVirtualService
| $module: hv_srv_vsa64_3917


Acronis Managed Machine Service user lacks necessary rights to perform backup.


Add Acronis Managed Machine Service user to the local Administrators group and restart the service.

  1. Click Start. In search, type compmgmt.msc and press Enter.
  2. Select Local Users and Groups -> Groups.
  3. Right-click Administrators and select Properties.
  4. Click Add.
  5. Type in the user name and click Check Names.
  6. Select the user and click OK. Save changes.