New Spectre-Busting Update Speeds Up Windows 10 PCsNew Spectre-Busting Update Speeds Up Windows 10 PCs

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OK folks,

Intel built into all of our processors the Spectre bug, and the only fix to help, cut our computer speeds down.

Intel has done nothing to fix their goof. But Microsoft has been working on it, and is now releasing the fix to speed up our Windows computers again.

Excerpt:

"Windows 10 PCs running the October 2018 Update are now getting improved Spectre fixes. This should speed up many PCs Microsoft slowed down with January 2018’s Spectre patches. This improvement, named “Retpoline,” was originally scheduled for Windows 10’s next update.

Technical information about how Google’s “Retpoline” works is available, but you don’t need to sweat the details. When implemented in Windows, it means the operating system can protect against Spectre attacks without a noticeable performance penalty.

We previously wrote that Spectre fix-related speedups would arrive with the forthcoming Windows 10’s April 2019 Update, also called 19H1. Now, Microsoft is slowly enabling this feature on current Windows 10 PCs—as long as they’re running the October 2018 Update. This is the first time these patches have been available on a stable version of Windows.

This change arrived in Windows update KB4482887, released on March 1, 2019. However, this only enables the new Retpoline feature “on certain devices.” As Microsoft’s Retpoline blog post explains:

Over the coming months, we will enable Retpoline as part of phased rollout via cloud configuration. Due to the complexity of the implementation and changes involved, we are only enabling Retpoline performance benefits for Windows 10, version 1809 and later releases.

In other words, Microsoft will slowly enable Retpoline on small amounts of PCs at a time, ensuring it works properly—that’s the “phased rollout.” And it will only be enabled on your PC if you’ve upgraded to Windows 10’s October 2018 Update."

Source: Spectre update fix