Back in April, Microsoft released Windows 10 dynamic updates under KB5057589, KB5055674, KB5056474, KB5055769, KB5055768, and KB5055770. The one for KB5057589 was one for WinRE (Windows Recovery Environment), and it kept failing with the 0x80070643 error code despite user PCs satisfying the necessary requirement of having more than 250 MB disk space for the recovery partition.
Microsoft closed the issue in April itself as it promised a better update that won't fail later. The tech giant at the time said that Windows "will not offer this update again" if you had already installed it.
However, with the monthly Dynamic updates (ones for Windows 11 also released) that are accompanying the July 2025 Patch Tuesday updates for Windows 10, Microsoft has released a new WinRE update again, this time under KB5063523. The company writes in its release notes:
KB5063523: Windows Recovery Environment update for Windows 10, version 21H2 and 22H2: July 8, 2025
Summary
This update automatically applies Safe OS Dynamic Update (KB5062691) to the Windows Recovery Environment (WinRE) on a running PC. The update installs improvements to Windows recovery features.
Microsoft adds that the update fixed the previous issue although the error code "0x80070643" will still pop up:
The following is a summary of the "Known issue" that this update addresses when you install this update.
• [0x80070643 – ERROR_INSTALL_FAILURE (Known issue)] Fixed: The ERROR_INSTALL_FAILURE error message that was previously observed with the April 8, 2025 (KB5057589) installed before 2 PM PT on April 21, 2025 has been resolved with this update or a later update. We recommend you install the latest update for your device as it contains important improvements and issue resolutions.
Note This update does not remove the incorrect error message which might still appear in the Windows Update History page.
As Microsoft points out, this is not the only dynamic update Microsoft released. Alongside, Windows recovery update, setup updates have also been released.
For those not familiar, these Dynamic Update packages are meant to be applied to existing Windows images prior to their deployment. These packages include fixes to Setup.exe binaries, SafeOS updates for Windows Recovery Environment, and more. Dynamic Updates also help preserve Language Pack (LP) and Features on Demand (FODs) content during the upgrade process. VBScript, for example, is currently an FOD on Windows 11 24H2.
First up, we have the setup updates:
KB5062682: Setup Dynamic Update for Windows 10, version 21H2 and 22H2: July 8, 2025
Summary
This update makes improvements to Windows setup binaries or any files that setup uses for feature updates in Windows 10, version 21H2 and Windows 10, version 22H2.
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KB5062787: Setup Dynamic Update for Windows 10, version 1809 and Windows Server 2019: July 8, 2025
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KB5062788: Setup Dynamic Update for Windows 10: July 8, 2025
Up next, we have the recovery updates:
KB5062691: Safe OS Dynamic Update for Windows 10, version 21H2 and 22H2: July 8, 2025
Summary
This update makes improvements to the Windows recovery environment (WinRE) in Windows 10, version 21H2 and Windows 10, version 22H2.
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KB5062689: Safe OS Dynamic Update for Windows 10, version 1607 and Windows Server 2016: July 8, 2025
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KB5062692: Safe OS Dynamic Update for Windows 10: July 8, 2025
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KB5062690: Safe OS Dynamic Update for Windows 10, version 1809 and Windows Server 2019: July 8, 2025
The necessary updates will be downloaded and installed automatically from the Windows Update channel.
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