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Microsoft Windows 11 Media Creation Tool Arm64 failure

Service Disruption
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Last updated
Happening score
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1 unique sources, 2 articles

Summary

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Microsoft's Windows 11 Media Creation Tool is failing on Arm64 PCs after the Windows 11 25H2 rollout, preventing affected users from creating bootable installation media. The issue affects version 26100.6584, which Microsoft says does not work as expected on Arm64 devices. Microsoft says Arm64 systems should normally be able to create media for x64 devices, but that function is broken right now. The company is investigating a fix and says users can use an AMD64 PC as a temporary workaround.

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Timeline

  1. 29.10.2025 19:41 1 articles · 7mo ago

    Microsoft restores Windows 11 Media Creation Tool in KB5067036

    Mitigation Patch Update

    Microsoft fixed the Windows 11 Media Creation Tool issue with the KB5067036 October 2025 preview update, restoring the tool on Windows 10 22H2 and Windows 11 25H2 systems. Microsoft said the tool was updated on October 28, 2025, and bootable media can again be downloaded for x64 devices.

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  2. 01.10.2025 17:00 2 articles · 7mo ago

    Microsoft confirms Windows 11 Media Creation Tool failure on Arm64 PCs

    Initial Disclosure

    Microsoft confirmed that Windows 11 Media Creation Tool version 26100.6584 is not working as expected on devices with Arm64 CPUs after the rollout of Windows 11 25H2. Affected users see the error message "We're not sure what happened, but we're unable to run this tool on your PC." Microsoft says the tool can still be used on AMD64 PCs and is investigating a fix, with a temporary workaround for users who need to create bootable installation media.

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