backup recovery

About this tag
The backup recovery tag on WindowsForum.com covers discussions about restoring data from backups, including issues caused by Windows updates. A recent thread highlights how the April 2026 Windows security update blocks the psmounterex.sys driver, breaking backup-image mounting and VSS snapshot workflows on Windows 10, Windows 11, and Windows Server. This illustrates how backup recovery reliability depends on kernel-level dependencies and Microsoft's security policies. The tag includes troubleshooting such driver blocklist problems and ensuring backup tools work after updates.
  1. Commvault Native Azure Cyber Resilience: Identity-Centered Recovery for M365 & Windows

    Commvault and Microsoft announced on June 24, 2026, that Microsoft will offer Commvault’s AI-powered cyber resilience technology as a native independent software vendor service inside Microsoft Azure for enterprise customers. The move is not just another marketplace listing with friendlier...
  2. April 2026 Windows Update Blocks psmounterex.sys, Breaking Backup Mounting

    Microsoft’s April 2026 Windows security update adds the third-party psmounterex.sys kernel driver to the Microsoft Vulnerable Driver Blocklist, causing backup-image mounting and some VSS snapshot workflows to fail on affected Windows 10, Windows 11, and Windows Server systems. The breakage is...