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AV Software Can Conflict with Windows Meltdown Patches — Microsoft

AV Software Can Conflict with Windows Meltdown Patches — Microsoft

It also has been reported that some of the recently developed patches can downgrade processor performance anywhere from five-to-35%.

The comments in the blog post "were the clearest signal from Microsoft that fixes for flaws in microchips from Intel and rivals described last week could meaningfully degrade performance", Reuters said. However, the emergency updates apparently caused overworking most Intel processors.

Brian Krzanich on Thursday published an open letter addressing its partners and customers regarding the aftermath of the Meltdown and Spectre exploits publication.

Intel is facing a growing number of lawsuits, including claims from groups of consumers alleging that it misled consumers by failing to disclose the security hole and demands for compensation based on the potential slower performance of machines that have been patched.

However, even on modern systems, Microsoft said that users should still see slowdowns of single0digit percentages. What we did is we released driver updates to patch the CPU security vulnerability. It's not known how long it will take to patch every chip safely, and in the meantime OEMs, software vendors and anti-virus companies have to carry the burden.

Of course, there was only one little problem with this fix: The first Microsoft Windows 10 patch bricked some PCs running older AMD processors. The flaw has left massive numbers of CPUs potentially susceptible to intrusion and data theft, and NVIDIA's patch indicates that certain GPUs may also be vulnerable.

AV Software Can Conflict with Windows Meltdown Patches — Microsoft
AV Software Can Conflict with Windows Meltdown Patches — Microsoft

When news of the flaws broke last week, the industry seemed to be caught off guard, despite the fact that they were going to publicly disclose the flaws on 9 January.

Microsoft explained that the reason why Windows 7 and 8/8.1 are more impacted than Windows 10 is because the two use older kernels which perform more transitions between the kernel-mode and the user-mode.

The magnitude of the Meltdown/Spectre debacle is yet to be truly understood. Microsoft has now provided a statement, admitting that the security fixes will slow down performance on some personal computers.

Our GPUs are immune, they are not affected by these security issues. I am very proud of how our industry has pulled together and want to thank everyone for their extraordinary collaboration.

If there is, it will be a huge source of frustration for those who would effectively be penalised for fixing a problem that didn't really have anything to do with them - a bit like when the teacher punishes the whole class for one naughty child.