Microsoft has solved a known problem, causing Windows upgrade on some Windows 11 and Windows server system with 0x8007007F errors.
Although the problem affects both Windows client and server platforms under specific upgrade paths, it will not affect customers who will try to upgrade their devices to Windows 11 24H2 and Windows Server 2025, latest Windows version.
“Since August 12, 2025, some Windows upgrade ‘Windows Setup> Upgrade’ can fail with the error code ‘0x8007007F’ when performed through installation,” noted Windows release in a new entry on the release health dashboard.
The list of upgrade paths affected by this bug includes:
- Upgradation From Windows 10 1809, Windows 10 21 H 2, and Windows 10 22 H 2 To Windows 11, versions 23h2 and 22h2
- Upgradation From Windows Server 2016 To Windows Server 2019 or Windows Server 2022
- Upgradation From Windows Server 2019 To Windows Server 2022
While the company did not share what was the cause of these upgrade problems, Redmond says that it is now decided to trigger the bug.
Users who have experienced issues while trying to upgrade their system are now advised to recover the upgrade process.
“The issue was resolved by August 15, 2025. The devices upgraded after this date should no longer face this error. If you experience the error ‘0x8007007F’, reconstructing the upgrade process will usually solve the problem,” said Redmund.
This week, Microsoft has also issued an emergency out-of-band update to address a bug, which has failed Windows Reset and Recovery after setting up a security update August 2025 security updates.
Additionally, Microsoft rolled out a known problem rollback (KIR) fix for a bug last week, which triggers Windows update failures when installed from the network shares using the Windows update standalone installer (Wusa).
The company also solved a separate issue starting with the establishment of the KB5063878 update, due to which the security update update of August 2025 failed on Windows 11 24H2 system when distributed via Windows Server Update Services (WSUS).
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