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Code42 Support

Back up virtual machines and separate boot partitions using CrashPlan for Small Business


Virtual machines (VMs) and separate boot partitions allow you to run additional operating systems on your computer. This article highlights best practices for backing up virtual machines or separate boot partitions with the Code42 app.


Common applications that create virtual machines or boot partitions include:

  • VMware
  • Parallels
  • Boot Camp
  • VirtualBox
  • Hyper-V

The Code42 app can back up the files within virtual machines or boot partitions.

The Code42 app does not back up Windows UNC file paths
The Code42 app does not support Universal Naming Convention (UNC) file paths (for example, //SERVERNAME/shareddir/).  File selections must use an absolute path (for example, C:/) to enable backup and restore. 


Back up files within a virtual machine or boot partition

Install an instance of the Code42 app inside the virtual machine or boot partition. This provides individual file backup and real-time backup support for those files. Alternatively, you could copy files from the virtual machine to an external drive, and back up the external drive from your primary operating system.



  • Do not back up operating system or application files.
  • Installing the Code42 app within a virtual machine is not a free installation and requires a CrashPlan for Small Business license.
CrashPlan for Small Business does not back up virtual machines
Virtual machine disk images, exports, and snapshots are excluded from CrashPlan for Small Business backups. For more details on what file types and folders are excluded from CrashPlan for Small Business backups, see What is not backing up (CrashPlan for Small Business)