The latter is a fix designed to improve performance of Spectre variant 2 mitigations, meaning that your PC (hopefully) won’t be slowed down as much by said mitigations. We mentioned at the outset of this story that this is an important update, and that’s because it patches against what Microsoft describes as a “new subclass of speculative execution side-channel vulnerabilities” (like Meltdown and Spectre), and it also enables ‘ Retpoline’ by default.
In other words, a fix should be in the pipeline to ensure that Windows Update history simply reports this cumulative update as a single entity which has been installed.
“We are working on improving this update experience to ensure the Update history correctly reflects the installation of the latest cumulative update (LCU).” The update installation may take longer and may require more than one restart, but will install successfully after all intermediate installation steps have completed. There’s no harm in the glitch, save for the confusion it has caused – but it would have been nice if Microsoft had provided a clear official explanation with some visibility, rather than hiding it away in the middle of a convoluted Windows 10 info page.Īs to the resolution of the problem, Microsoft comments: “No action is required on your part. This should just happen and be recorded as the installation of a single update, but there’s a bug which is causing Windows Update to report that KB4494441 has been installed twice, when in fact that isn’t the case.
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