Microsoft reveals how Spectre updates might slow your PC down

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Microsoft is taking the surprise step of detailing how Spectre and Meltdown firmware updates may affect PC performance. The tech industry has been scrambling to issue updates to protect against the two CPU security flaws over the past week, and there have been many reports of potential performance issues. The good news is that for modern PCs running Windows 10, most consumers won’t notice a significant difference. If you’re on an older machine, particularly a Windows 7 or Windows 8 one, then there’s going to be some noticeable performance changes.

https://www.theverge.com/2018/1/9/16868290/microsoft-meltdown-spectre-firmware-updates-pc-slowdown

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Re: Microsoft reveals how Spectre updates might slow your PC down
« Reply #1 on: January 29, 2018, 07:55:22 PM »
[Update]
Microsoft has issued an out-of-band Windows update that disables patches for the Spectre Variant 2 bug (CVE-2017-5715). The update is only needed if you installed the Intel BIOS/firmware update from the OEM and you are experiencing reboot issues.

The update applies to Windows 7 Service Pack 1, Windows 8.1, Windows 10, Windows 10 Version 1511, Windows 10 Version 1607, Windows 10 Version 1703, Windows 10 version 1709, Windows Server 2008 R2,  Standard Windows Server 2012 R2 Standard.
See: https://support.microsoft.com/en-us/help/4078130/update-to-disable-mitigation-against-spectre-variant-2

KB4078130 is available HERE.

Microsoft MVP Consumer Security 2006-2016
Microsoft Windows Insider MVP 2016-