Published: Tue, January 09, 2018
Medicine | By Earnest Bishop

Meltdown fix is bricking AMD devices, Microsoft says

Meltdown fix is bricking AMD devices, Microsoft says

Microsoft has paused distributing its Meltdown and Spectre security updates for AMD machines after reports of PCs not booting.

Windows 10 becomes stuck and will not restart and enter the operating system, displaying the error code 0x800f0845.

The update is available from within Update & Security in the Settings app. According to the rep, the issue stems from AMD's documentation for the processors - which Microsoft used to ensure support for the patch - not lining with the physical reality of the affected chipsets.

Meltdown and Spectre are two memory corruption flaws which could allow hackers bypass operating systems and other security software to steal passwords or encryption keys, on most types of computers, phones and cloud-based servers.

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Microsoft has pushed out a new security update to Windows 10 Mobile users. The bugs were expected since the update rolled out in emergency after flaws in Intel, AMD and ARM chips were discovered. The problem is specifically related to machines with AMD CPUs. It says it is working with AMD to resolve the problem and will resume issuing CPU fixes for AMD machines soon.

Explaining why the patch had caused certain AMD PCs to crash, Microsoft said that it had "determined that some AMD chipsets do not conform to the documentation previously provided to Microsoft to develop the Windows operating system mitigations to protect against the chipset vulnerabilities known as Spectre and Meltdown".

Microsoft said it will temporarily stop sending the nine systems updates out to some PCs running particular AMD processors.

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.

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