Supported Operating Systems for Backups

  • Windows Server 2008 R2 (UEFI [Unified Extensible Firmware Interface] builds are not supported)
  • Windows Server 2012
  • Windows Server 2012 R2
  • Windows Server 2016
  • Windows Server 2019


  • Hyper-V Hosts and Client Operating Systems are not supported
  • Core Operating Systems are not supported
  • SBS2011 is not supported
  • Virtual Machines (VMs) are not supported for backup, please make use of Altaro VM Backup for backing up VMs


Supported Hyper-V Host Operating Systems for Restores

  • Windows Server 2012
  • Windows Server 2012 R2
  • Windows Server 2016
  • Windows Server 2019

Required Hardware Specifications

  • Minimum of i5 (or equivalent) processor
  • 2 GB RAM
  • 1 GB Hard Disk Space + 15 GB (for temporary files created during backup operations)
  • Minimum of 10% free disk space on each volume holding live data to be used for Microsoft Volume Shadow Copy
  • Partitions being backed up must: 
    • be NTFS or FAT32 formatted
    • not have spanned/mirrored volumes
    • be Basic Disk Type (not Dynamic)
    • be of disk type "LocalDisk"


Software Prerequisites

  • MS .NET Framework 4.0/4.5 and 4.7 (required for TLS1.2) on Windows Server 2012
  • Minimum screen resolution for the Altaro Management console: 1280x800


Communication Ports

  • 35480 : Communication between User Interface and Altaro Physical Server Backup
  • 35116 & 35117 : Communication from Altaro Physical Server Backup to the Altaro Offsite Server


Supported Backup Locations

  • USB External Drives
  • eSata External Drives
  • USB Flash Drives
  • Fileserver Network Shares using UNC Paths
  • NAS devices (Network Attached Storage) using UNC Paths
  • PC Internal Hard Drives (recommended only for evaluation purposes)


  1. Target storage partitions must be either NTFS formatted or Network Paths and accessible by SMB3.0
  2. Please ensure that the backup location chosen does not perform any sort of deduplication outside that of Altaro Physical Server Backup
  3. Tape Devices are not supported as backup locations