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ReFS file shares are fully supported by the FSLogix agent.

ReFS has several features that the FSLogix client takes advantage of. Some of the important ones are:

  1. ReFS is able to merge difference disks to VHD/X files very quickly.
  2. ReFS is able to allocate space for VHD/X files very quickly.
  3. ReFS is able to grow dynamic VHD/X files very quickly.

If you are allocating full VHD/X files, or using dynamic VHD/X files, or if you are using differencing disks with FSLogix, please consider using this file system on the File Server.


To use these features, the File Server must be running Server 2016 and the client must be either Server 2016 or Windows 10.