Windows settings backup is now enabled by default on eligible Microsoft Entra-joined and hybrid-joined enterprise devices upgraded to Windows 11 26H2. But restore remains off unless an administrator enables it, so the new default does not automatically recover users’ settings on replacement devices.

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Microsoft released KB5127216 and KB5125758 on September 22 for Windows 11 24H2 and 25H2, refreshing the components used during feature upgrades and system recovery. The releases extend Microsoft’s recent run of Windows 11 dynamic updates with new Setup security fixes and updated Windows Recovery Environment support.

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Windows 11's optional September preview update, KB5124010, finally fixes File History. After the mandatory KB5124008 Patch Tuesday release, File History had been failing silently. Microsoft had already confirmed that its September updates can break File History backups. The fix only ships in an optional release, so most PCs will have to wait for the October 13 Patch Tuesday to get it through normal channels.

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Microsoft 365 has a resilience problem. If attackers compromise privileged accounts or applications, they may be able to delete data, identities, and configuration across the tenant. Restoring individual mailboxes or files is possible, but rebuilding a functional tenant with the correct identities, permissions, policies, and service connections remains difficult.

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Microsoft has confirmed that September 2026 security updates can disable File History across supported Windows 10 and Windows 11 releases, leaving users without fresh file backups. The regression expands the problem documented in a Windows 11 Insider build that fixes File History, but production systems still lack a permanent repair.

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Windows 11 Insider Beta build 26220.9492 addresses two problems that can disrupt administrator workflows: File History incorrectly reporting that no usable backup drives exist and Hyper-V Linux guests losing access to shared host folders. The 25H2 preview also adds a Live Captions setting that controls whether screen-reader audio appears in transcriptions.

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