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Windows upgrade failures with 0x8007007F error resolved

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📰 1 unique sources, 1 articles

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Microsoft has resolved a known issue that caused Windows upgrades to fail with the 0x8007007F error on some Windows 11 and Windows Server systems. The bug affected specific upgrade paths for Windows 10 and Windows Server versions. The issue did not impact upgrades to the latest Windows versions, 24H2 and Windows Server 2025. The problem occurred when upgrading from Windows 10 1809, 21H2, and 22H2 to Windows 11 versions 23H2 and 22H2, as well as from Windows Server 2016 to 2019 or 2022, and from Windows Server 2019 to 2022. The bug was fixed as of August 15, 2025, and users are advised to retry the upgrade process if they encounter the error.

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  1. 20.08.2025 11:21 📰 1 articles

    Microsoft resolves Windows upgrade failures with 0x8007007F error

    Microsoft has resolved a known issue that caused Windows upgrades to fail with the 0x8007007F error on specific upgrade paths for Windows 10 and Windows Server versions. The bug was fixed as of August 15, 2025, and users are advised to retry the upgrade process if they encounter the error. The issue did not impact upgrades to the latest Windows versions, 24H2 and Windows Server 2025.

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Similar Happenings

August 2025 Windows Security Updates Cause Recovery and Reset Failures

Microsoft's August 2025 Windows security updates cause failures in reset and recovery operations, streaming issues, and app installation problems on Windows 10 and older versions of Windows 11. The issue affects multiple system recovery and reset features, including 'Reset my PC' and the 'Fix problems using Windows Update' tool. The bug impacts specific Windows versions and updates, and Microsoft has released out-of-band updates to address the issues. The affected updates include KB5063875 for Windows 11 23H2 and 22H2, KB5063709 for Windows 10 22H2 and LTSC 2021 versions, and KB5063877 for Windows 10 LTSC 2019 versions. The issue also affects remote resets using the RemoteWipe CSP. Microsoft has confirmed the bug and is working on a resolution. They have previously addressed similar issues with Known Issue Rollback (KIR) fixes. Additionally, the August 2025 Windows security updates cause severe lag and stuttering issues with NDI streaming software on some Windows 10 and Windows 11 systems. Microsoft has released the KB5065426 and KB5065429 updates to fix these streaming issues. The August 2025 security updates also trigger unexpected User Account Control (UAC) prompts and app installation issues for non-admin users across all supported Windows versions. The issue is caused by a security patch addressing the CVE-2025-50173 Windows Installer privilege escalation vulnerability. The September 2025 Windows security update addresses this issue by reducing the scope for requiring UAC prompts for MSI repairs and enabling IT admins to disable UAC prompts for specific apps by adding them to an allowlist.

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