Microsoft halts AMD Meltdown and Spectre patches after reports of unbootable PCs

January 3, 2018—KB4056892 (OS Build 16299.192) - Microsoft Support

Users have taken to Microsoft's support forums to complain they are no longer able to start their PCs.

Microsoft has stopped Windows updates meant to patch the Meltdown and Spectre vulnerabilities on AMD powered computers. Affected users have reported that after installing them, their PCs display the Windows boot logo but then completely stop responding. After Microsoft recently confirmed that it is mitigating the Meltdown vulnerability with automatic updates, reports have fallen in that Microsoft's fix for the bug, may be crocking AMD-powered PCs.

If you have already downloaded the updates and are faced with a PC that doesn't boot, Microsoft also provides troubleshooting instructions for Windows 10, WIndows 8.1 and Windows 7.

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It's worth noting that Microsoft patched Meltdown and Spectre last week as part of the emergency updates for Windows operating systems.

The company has blamed AMD's own documentation, which apparently does "not conform to the documentation previously provided to Microsoft". The update was delivered through Windows Update to a "quite pre-historic" computer, specifically running on the AMD Athlon X2 6000+, which was released a decade ago. Microsoft is, however, pausing the rollout of these emergency patches for devices with AMD chipsets until the company figures out a workaround. The bugs were expected since the update rolled out in emergency after flaws in Intel, AMD and ARM chips were discovered.

The news comes after Apple announced on Monday it was releasing an update to protect its devices from the chip flaw which affects almost all computers and smartphones made within the past 10 years.