Quick fix: ReFS support on Windows 11 client (Home/Pro) is provided by an optional “Resilient File System” feature that’s not installed by default. Open Settings → System → Optional features → View features, search for ReFS, and install it. The drive recognizes as ReFS immediately after the install completes; no reboot.

You connect a drive that was formatted ReFS on a Windows Server or on a Windows 11 Pro for Workstations system. On regular Windows 11 Pro or Home, Disk Management shows the drive as RAW or unallocated. The data is intact, but Windows acts like it doesn’t recognize the file system. The cause is that Microsoft removed full ReFS support from consumer Windows 11 and moved it behind an optional feature pack.

Symptom: A ReFS-formatted drive shows as RAW on Windows 11 Pro/Home; data appears inaccessible.
Affects: Windows 11 Pro/Home; Workstations and Enterprise have ReFS built-in.
Fix time: 10 minutes.

Why ReFS is optional on consumer Windows

Microsoft positions ReFS as a server file system. Windows 8.1 included client ReFS by default. Windows 10 progressively limited it. Windows 11 client editions ship without it, but the read/write driver is available as an optional feature you can install on demand. The change is intentional — ReFS doesn’t boot Windows, doesn’t support compression like NTFS, and the audience for it on a consumer PC is small.

The optional feature includes the file system filter driver and the format tools. Once installed, ReFS behaves as expected: read, write, format new drives, attach existing ones.

Method 1: Install ReFS from Optional features

Open Settings → System → Optional features.
Click View features at the top.
In the search box, type ReFS or Resilient File System.
Check the feature in the results and click Next, then Install.
Wait for the install to complete (about 2–5 minutes; no reboot needed).
Open Disk Management. The drive previously shown as RAW now shows as ReFS and gets a drive letter.

If the search returns no result for ReFS, your Windows edition doesn’t support the optional feature — see Method 2.

Method 2: Check whether your edition supports ReFS at all

Not all Windows 11 editions have the ReFS optional feature available.

Press Win + R, type winver, press Enter. Note the edition name.
Reference:

  Windows 11 Home: ReFS optional feature available in 23H2+

  Windows 11 Pro: same as Home

  Windows 11 Pro for Workstations: ReFS built-in, no feature install needed

  Windows 11 Enterprise: ReFS built-in

  Windows 11 Education: same as Pro
If you’re on Home or Pro at 22H2 or older, upgrade to 23H2 or later via Windows Update. Then the feature appears.
If you’re on a Server SKU, ReFS is always present — the issue isn’t the feature.

For Pro users who need ReFS often, consider Windows 11 Pro for Workstations — it includes ReFS, supports more RAM, and has other server-like features.

Method 3: Access ReFS data via a Linux live USB as a temporary workaround

If you only need to read the drive once and can’t upgrade or install features:

Download Ubuntu 24.04 or later ISO.
Create a bootable USB with Rufus or balenaEtcher.
Boot the PC from the USB in “Try Ubuntu” mode (no install).
Install ReFS read support: sudo apt update; sudo apt install refsutils (some Ubuntu distributions; otherwise compile from source).
Mount the ReFS drive read-only and copy data to another drive.

This is a one-time workaround for data recovery, not a daily-driver solution. For ongoing ReFS work on Windows, use Method 1 or 2.

How to verify the fix worked

Open Disk Management. The drive shows as ReFS in the file system column, with a drive letter assigned.
Open File Explorer and navigate to the drive letter. Files and folders are visible.
Run fsutil fsinfo refsinfo X: (replace X: with the drive letter). Returns the ReFS volume info, including the version (1.2, 3.4, 3.7, etc.).
Copy a small test file in and out. Read/write both succeed.

If none of these work

If the drive still shows as RAW after installing the feature, the ReFS version may be too new for the installed driver. ReFS 3.10+ is server-only and may not be readable by the client optional feature. Check the source system’s ReFS version with fsutil fsinfo refsinfo and confirm it matches what Pro/Home supports (currently 3.7 and below). For very new ReFS versions, you need Workstations or Enterprise edition. For drives that are RAW because of actual corruption, run refsutil triage in elevated terminal — it salvages files from a damaged ReFS volume without requiring a full mount.

Bottom line: ReFS isn’t broken on consumer Windows 11; it’s opt-in. Install the optional feature on 23H2+ and the drive recognizes immediately. For older builds or unsupported editions, upgrade or use a Linux live USB as a one-time recovery tool.