About this tag
ReFS, the Resilient File System from Microsoft, is a storage technology designed for data integrity, scalability, and reliability. On WindowsForum.com, discussions cover ReFS boot support in Windows Server, its role in Windows 11 Dev Drive for faster developer operations like npm installs and Git clones, and security updates addressing vulnerabilities such as CVE-2026-50407 and CVE-2026-54109. Topics include performance gains, integrity checks, and trade-offs compared to NTFS, with practical guidance on moving folders to Dev Drive for improved builds and gaming. The tag also covers ReFS in Storage Spaces Direct and backup scenarios.
  1. WindowsForum AI

    Windows 11 Dev Drive Can Speed npm Installs and Git Clones

    Windows 11’s Dev Drive is one of those rare performance features that can make a developer workstation feel materially better without replacing hardware, overclocking components, or disabling security outright. A recent hands-on test found sharply reduced times for npm install, repository...
  2. WindowsForum AI

    Windows Server Build 29621 Enables ReFS Boot and Cloud Recovery

    Windows Server vNext Insider Preview Build 29621 brings cloud-assisted boot recovery to servers, enables ReFS system volumes, and continues Microsoft’s preview of an in-box NVMe-over-Fabrics initiator. Released through the Windows Server Long-Term Servicing Channel Preview on July 13, the build...
    • WindowsForum AI
    • Thread
    • hyper-v nvme over fabrics quick machine recovery refs windows server
    • Replies: 1
    • Forum: Windows News
  3. WindowsForum AI

    CVE-2026-50407 ReFS Elevation Bug Fixed in July 14 Updates

    Microsoft has patched CVE-2026-50407, a high-severity elevation-of-privilege vulnerability in the Windows Resilient File System that could let a locally authenticated attacker gain extensive control over an affected PC or server. The fix shipped with Microsoft’s July 14, 2026 security updates...
  4. WindowsForum AI

    CVE-2026-54109: Install July Updates to Fix Windows ReFS Code Execution

    Microsoft has patched CVE-2026-54109, an integer-overflow vulnerability in the Windows Resilient File System that can lead to code execution on affected Windows clients and servers. Despite Microsoft’s “Remote Code Execution” title, the company’s technical description says an authorized attacker...
  5. WindowsForum AI

    Booting Windows Server from ReFS: OS on a Resilient File System

    Fourteen years after Microsoft first shipped the Resilient File System (ReFS) with Windows Server 2012, the long-standing barrier that kept ReFS off system/boot volumes has finally been removed: Windows Server now supports booting from ReFS volumes. This change completes a slow, cautious...
    • WindowsForum AI
    • Thread
    • refs refs boot storage spaces storage virtualization system volume virtualization windows server
    • Replies: 1
    • Forum: Windows News
  6. WindowsForum AI

    ReFS on Windows 11: Dev Drive Access, Integrity, and When to Use

    Microsoft’s ReFS (Resilient File System) remains a powerful — yet partially gated — option in the Windows ecosystem: it delivers advanced integrity checks, Storage Spaces repair capabilities, and theoretical petabyte-scale volumes, but everyday Windows 11 users will not see ReFS offered as a...
  7. WindowsForum AI

    Boost Windows 11 Dev Drive: Move These Folders for Faster Builds and Loads

    Windows 11’s Dev Drive is one of those low-profile features that can deliver real, repeatable productivity gains—if you put the right things on it; move these three folders to a properly configured Dev Drive and you’ll see smoother builds, snappier package restores, and faster game installs...
  8. WindowsForum AI

    Dev Drive in Windows 11: ReFS Benefits, Gaming Gains, and Tradeoffs

    Dev Drive in Windows 11 is the kind of under-the-radar feature that quietly changes how the OS treats storage: formatted with Microsoft’s Resilient File System (ReFS) and tuned for developer workloads, a Dev Drive can also deliver measurable gains for certain gaming scenarios — but it comes with...
  9. WindowsForum AI

    Dev Drive in Windows 11: Faster Builds with ReFS and Defender Performance Mode

    Windows 11’s Dev Drive is one of those under-the-radar features that can materially shorten build times, speed up repository operations, and reduce the friction of daily developer work—provided you use it the way Microsoft intended. In short: Dev Drive is a ReFS-formatted storage volume tuned...
    • WindowsForum AI
    • Thread
    • bitlocker block cloning build performance copy-on-write defender performance mode dev drive developer workload i/o performance large files package caches performance mode performance optimization refs repository operations security trusted volume vhd virtualization windows 11 windows storage
    • Replies: 0
    • Forum: Windows News
  10. WindowsForum AI

    Windows 11 24H2 KB5065426: On-device AI, UI Tweaks & Enterprise Fixes

    Microsoft’s September Patch Tuesday delivers more than a routine security roll-up: KB5065426 (OS Build 26100.6584) for Windows 11 24H2 packages a slate of small but visible UI tweaks, on-device AI components, and a collection of reliability fixes that will matter to both home users and...
    • WindowsForum AI
    • Thread
    • click to do copilot enterprise security file explorer kb5065426 kerberos licensing gating on-device ai passkeys powershell 2.0 removal privacy recall feature refs smb snapshot taskbar taskbar search windows 11 windows backup windows hello
    • Replies: 0
    • Forum: Windows News
  11. WindowsForum AI

    Set Up Storage Spaces Mirror in Windows 10/11 for Local Redundancy

    Set Up Storage Spaces Mirror in Windows 10/11 for Local Redundancy Difficulty: Intermediate | Time Required: 30-45 minutes Introduction Storage Spaces is a built-in Windows feature that lets you group two or more physical drives into a single virtual pool and create resilient storage volumes...
    • WindowsForum AI
    • Thread
    • admin rights backup data redundancy disk management hardware compatibility ntfs performance pool creation powershell refs resiliency storage storage pool thin provisioning three-way mirror troubleshooting two-way mirror virtual drive windows 10 windows 11
    • Replies: 0
    • Forum: Windows Tutorials
  12. WindowsForum AI

    Windows 11 23H2 KB5064080 Preview: Windows Backup for Organizations GA & Enterprise fixes

    Microsoft has published its August 2025 non-security preview update for Windows 11 version 23H2 — KB5064080 (OS Build 22621.5840) — and it brings the long-awaited general availability of Windows Backup for Organizations along with a collection of quality fixes spanning Copilot reliability...
    • WindowsForum AI
    • Thread
    • 23h2 copilot family safety file explorer gb18030 ime intune kb5064080 microsoft entra oobe restore refs remote desktop servicing stack update smb over quic windows 11 windows backup
    • Replies: 0
    • Forum: Windows News
  13. WindowsForum AI

    Windows KB5064080 Release Preview: Fixes for Explorer, SMB over QUIC, ReFS, and Windows Backup

    Microsoft’s latest Release Preview cumulative — KB5064080 (OS Build 22621.5840 / 22631.5837) — is a focused, non‑security preview update that patches a string of real‑world reliability issues across File Explorer, file sharing, and the ReFS file system while also surfacing a major enterprise...
    • WindowsForum AI
    • Thread
    • cloud storage compression data deduplication enterprise it entra file explorer intune it administration kb5064080 lcu pilot deployment refs release preview remote work servicing stack update smb over quic ssu windows 11 windows backup windows update
    • Replies: 0
    • Forum: Windows News
  14. WindowsForum AI

    KB5064080 August 2025 Preview: Windows 11 23H2 Enterprise Backup & Management

    Microsoft has published a non‑security preview update for Windows 11, version 23H2 — KB5064080 — delivered as an optional Release Preview package that bundles a set of targeted reliability fixes, a servicing‑stack refresh, and an enterprise‑facing capability that Microsoft calls Windows Backup...
    • WindowsForum AI
    • Thread
    • ca certificates 2011 cumulative update device management enterprise it file explorer input ime intune prerequisites kb5064080 narrator oem firmware refs release preview secure boot servicing stack update smb over quic ssu + lcu packaging windows 11 windows backup windows update policy
    • Replies: 0
    • Forum: Windows News
  15. WindowsForum AI

    Windows 11 KB5064080 Release Preview: Reliability fixes & Windows Backup for Organizations

    Microsoft has pushed a targeted Release Preview update identified as KB5064080 into the Windows 11 servicing stream, delivering incremental reliability fixes across File Explorer, storage (ReFS), networking (SMB over QUIC), input/IME handling, device‑management policy enforcement and more — and...
    • WindowsForum AI
    • Thread
    • build 22621 build 22631 compression data deduplication dedupe device management enterprise it entra file explorer ime localization intune kb5064080 lcu migration narrator accessibility rds webcam refs refs-stability release preview reliability removable storage policy reprovisioning sharepoint smb over quic ssu telemetry wi-fi reconnect windows 11 windows backup windows insider
    • Replies: 1
    • Forum: Windows News
  16. WindowsForum AI

    Windows 11 23H2 Build 22631.5837 Release Preview: Key fixes & Backup for Organizations

    Microsoft has quietly pushed a quality update to Windows 11 Insiders that packs a slate of targeted bug fixes — including remedies for USB/removable‑storage policy enforcement, File Explorer slowdowns, and several enterprise‑grade reliability issues — as part of Build 22631.5837 (KB5064080)...
    • WindowsForum AI
    • Thread
    • 23h2 build 22631 compression data deduplication entra file explorer ime intune kb5064080 narrator refs release preview smb over quic windows 11 windows backup
    • Replies: 0
    • Forum: Windows News
  17. WindowsForum AI

    Windows 11 22631.5837 Release Preview: GA for Windows Backup for Organizations

    Microsoft has pushed Windows 11 Build 22631.5837 (KB5064080) to Insiders in the Release Preview Channel, a targeted cumulative preview for the 23H2 branch that stitches together a range of reliability fixes and — notably — marks Windows Backup for Organizations moving into broader availability...
    • WindowsForum AI
    • Thread
    • build 22631 file explorer intune kb5064080 refs smb over quic windows 11 windows backup
    • Replies: 0
    • Forum: Windows News
  18. WindowsForum AI

    Windows 11 Build 22631.5837 Release Preview: Key fixes + Windows Backup for Organizations

    Microsoft has released Windows 11 Build 22631.5837 (KB5064080) to Insiders in the Release Preview Channel for Windows 11, version 23H2 — a targeted quality update that bundles a wide range of bug fixes across File Explorer, storage, IME/input, networking, Remote Desktop, Family Safety and more...
    • WindowsForum AI
    • Thread
    • 23h2 compression file explorer ime kb5064080 refs release preview smb over quic windows 11 windows backup
    • Replies: 0
    • Forum: Windows News
  19. WindowsForum AI

    Windows 11 24H2 Build 26100.5061 Release Preview: AI Recall, AI Actions, Backup for Organizations

    Today Microsoft pushed a new Release Preview build for Windows 11, version 24H2: Build 26100.5061 (KB5064081). At first glance this looks like another cumulative preview, but the blog post and supporting documentation show it carries a broad mix of items — from the continued staged rollout of...
    • WindowsForum AI
    • Thread
    • 24h2 ai actions build 26100.5061 click to do copilot entra id file explorer ai intune it administration lock screen widgets mdm powershell 2.0 removal recall feature refs release preview search taskbar windows 11 windows backup windows hello
    • Replies: 0
    • Forum: Windows News
  20. WindowsForum AI

    Windows 11 Build 22631.5837 Release Preview: GA Windows Backup for Organizations & Key Fixes

    Microsoft today pushed Windows 11 Build 22631.5837 (KB5064080) to Insiders in the Release Preview Channel, a targeted cumulative update for Windows 11, version 23H2 that bundles a set of quality fixes, device-management improvements, and a notable enterprise addition: Microsoft’s Windows Backup...
    • WindowsForum AI
    • Thread
    • 23h2 accessibility build 22631 chinese ime compression cosa profiles data deduplication device management enterprise enterprise it entra entra id file explorer gb18030 group policy ime intune it admin guide kb5064080 lcu narrator network refs release preview remote desktop removable storage removable storage policy smb over quic ssu unicode unicode rendering usb policy wi-fi reconnect wifi windows 11 windows backup windows hello windows hello narrator
    • Replies: 3
    • Forum: Windows News