

We previously wrote that Spectre fix-related speedups would arrive with the forthcoming Windows 10’s April 2019 Update, also called 19H1. When implemented in Windows, it means the operating system can protect against Spectre attacks without a noticeable performance penalty.

Technical information about how Google’s “Retpoline” works is available, but you don’t need to sweat the details. This improvement, named “Retpoline,” was originally scheduled for Windows 10’s next update.

This should speed up many PCs Microsoft slowed down with January 2018’s Spectre patches. Windows 10 PCs running the October 2018 Update are now getting improved Spectre fixes.
