Microsoft cancels AMD Meltdown and Spectre patches after they start bricking PCs

Microsoft cancels AMD Meltdown and Spectre patches after they start bricking PCs

3, security researchers publicly detailed three potential vulnerabilities named "Meltdown" and "Spectre". AMD and Microsoft have been working on an update to resolve the issue and expect it to begin rolling out again for these impacted shortly. The good news is that for modern PCs running Windows 10, most consumers won't notice a significant difference.

The fixes, though, could slow down older machines and servers, Microsoft said.

AMD shares have gained almost 20 percent in the last week as investors speculated that the chipmaker could wrest market share from Intel, whose chips were most exposed to the security flaws.

More information on how to perform a BIOS Update.

Microsoft said that it is still testing the speed impacts of updating systems, and it doesn't have concrete numbers yet. Computers equipped with AMD processors - apparently, it's older ones like Athlon and Semperon - are no longer able to boot after installing the update.

In response to the issue, Microsoft now says it has paused the patch rollout for PCs with affected processors.

Performance slowdowns will be most apparent for older Windows client systems, such as Windows 7 and Windows 8, particularly when using Intel Haswell chips on "2015-era PCs", according to an announcement by Terry Myerson, executive vice president of the Windows and Devices Group. AMD said previously that its chips were vulnerable to only one variant of Spectre, and not vulnerable to Meltdown. He also warned Windows Server administrators of "a more significant performance impact when you enable the mitigations to isolate untrusted code within a Windows Server instance".

Windows Server customers, running either on-premises or in the cloud, also need to evaluate whether to apply additional security mitigations within each of their Windows Server VM guest or physical instances.

The patch against Meltdown and Spectre reportedly bricked machines. This may require an update to your Lenovo Drivers. If you own an AMD system and Windows 10 is telling you to update, perhaps hold off on that for another week or so, otherwise your system may enter an unbootable state.

"As you can tell, there is a lot to this topic of side-channel attack methods", explains Myerson.

"We're also committed to being as transparent and factual as possible to help our customers make the best possible decisions for their devices and the systems that run organizations around the world", the company said. "That's why we've chosen to provide more context and information today and why we released updates and remediations as quickly as we could on January 3rd".

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