Windows 10: Windows 11 is getting ReFS support

Recent Windows 11 Insider builds include support for ReFS, the Resilient File System. The file system is currently only available in Windows server operating systems, but not in client systems.



Resilient File System is designed to "maximize data availability, scale efficiently to large data sets across diverse workloads, and provide data integrity with resiliency to corruption" according to Microsoft.

ReFS vs NTFS


NTFS, the New Technology File System, is the default file system on client versions of Microsoft's Windows operating system. It is a proprietary file system introduced in Windows NT 3.1 and also supported on Linux and BSD.

ReFS and NTFS support a wide range of features, but there are major differences between the two file systems as well.

The Resilient File System, for example, supports file and volume sizes of up to 35 petabytes. NTFS, on the other hand, supports a maximum of 256 terabytes. A petabyte equals 1024 terabytes. While most home systems are very far away from reaching these file and volume sizes, it is clear that the 256 terabyte limit will be reached eventually.

ReFS supports the following features exclusively (compared to NTFS):

• Block clone -- aims to convert expensive physical file copy operations to quick logical ones. Reduces workloads, reduces I/O and increases the performance of the operations.
• Sparse VDL -- allows ReFS to zero files rapidly, which reduces the creation time of fixed VHDs significantly.
• Mirror-accelerated parity (on Storage Spaces Direct) -- designed to deliver high performance and capacity efficient storage. ReFS divides volumes, which can have their own drives, into performance and capacity tiers. Writes occur in the performance tier and data is moved to the capacity tier in real-time.
• File-level snapshots -- creates a new file that contains data and attributes of a source file.

ReFS lacks support for several important features that NTFS supports. Major features that are missing include file system compression and encryption support, support for disk quotas and removable media, or booting.

ReFS support in Windows 11


ReFS support adds a new option to the Windows 11 operating system. It is possible that the file system will only be supported in Enterprise, Education and Workstation editions of Windows 11. On the other hand, a Pro version of Windows 11 was used by the Twitter user who revealed the support information.

Another aspect that needs to be considered is that there is no direct NTFS to ReFS conversion; this makes it very likely that ReFS can only be selected during initial setup of the operating system, but not while it is running.

Windows 11 administrators may enable ReFS on Windows 11 Insider builds using ViVeTool and the ID42189933. It is recommended to create a full system backup before attempting to install Windows 11 on ReFS.

Now You: would you switch from NTFS to ReFS if such an option would be provided?

Thank you for being a Ghacks reader. The post Windows 11 is getting ReFS support appeared first on gHacks Technology News.

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ReFS support for Windows 10 Pro Fall Creators update and forward

I cannot find the definite answer if ReFS will be supported on the Fall Creators update and future versions of Windows 10 Pro. I've seen a few cached pages of the items that are schedule to be deprecated and/or remove in the Fall CU and ReFS support was
listed for Home/Pro but there is no mention of it on the current pages.

However, support has been removed from both File Explorer and FSUTIL since the Spring CU was release.

I believe it's been removed as there might still need to be features ported over from NTFS to support the newest One Drive; which is way ReFS support is not there for One Drive and I've heard there are memory leaks related to ReFS and Windows 10 Fall CU.

So, does anyone know if ReFS will come back to Windows 10 Pro?