Windows server operating system: Windows Server 2016, 2019, or 2022
I guess if you find a really old copy of netbak it may work. if its only a few PCs why not use the built in Windows 7 Backup utility or Veeam. both are simple enough to use. just point them to a share and thats it.
I’m sorry for the late reply but SyncBack Free is free to use (also in commercial organizations) and it work with even older Windows versions: “Windows 11, 10, 8, 7 and Vista. Both 32-bit and 64-bit versions of Windows are fully supported.”.