New ReFS feature in Windows 11 24H2

[HotCakeX]

The Supports Encrypted File System is now available in 24H2 build for ReFS formatted drives. That could be referring to the EFS or something else.

• Build 23H2 ReFS version: 3.10
• Build 24H2 ReFS version: 3.14

You can verify it using the following commands and get more info about your ReFS formatted volumes. Replace D: with your own drive letter.

fsutil fsinfo volumeinfo D:
fsutil fsinfo refsinfo D:

[13xforever]

They call it Personal Data Encryption . And documentation states it was first implemented in 22H2 (but maybe not for ReFS specifically).

[HotCakeX]

Thank you! Yes, on my 23H2 build it doesn't exist so i think it's a 24H2 feature. The official ReFS document is very outdated, I made a PR for it.

[Karl-WE]

Hi @HotCakeX the ReFS gist has moved where you commented.
Link in the reply above yours.

The compression feature is documented on old and new gist.

Windows Server 2025 will have a new dedup including ReFS compression for even higher effiency, e. g. on Azure Stack HCI 23H2, S2D, etc.

[HotCakeX]

Nice, now all we want is to make it bootable :)

[Karl-WE]

Bootable ReFS is there but the use case is yet limited to a certain thing. No Client / Server OS yet. Unfortunately.

[HotCakeX]

Oh! if client/server OS doesn't support it then what does? 🤔like HoloLens, IoT stuff?