Microsoft released the Windows Update KB4078130 on 28 January 2018. This update is released to disable the mitigation against Spectre, Variant 2 on all supported versions of the company’s Windows operating system when installed.Intels spectre BIOS patch is causing a system reboot issue and recommended the customers to stop deploying the current microcode version on impacted processors.Microsoft has rolled out the update for Windows 10, 8.1, 7, Server 2008, Server 2008 R2, Server 2012 R2, and Server 2016 as all of these operating systems are affected by Intel’s Spectre BIOS patch.If you have an impacted processor you can download this update at the end of this article.What Are Spectre and Meltdown?Most of us may wonder what are spectre and metldowns. well, Spectre and Meltdown both rely on something called “speculative execution,” which is when your computer tries to guess what you’ll do next so it can perform that task faster.The way this data is stored, it creates a vulnerability that could give hackers access to other private information on the computer.Meltdown primarily affects Intel processors, which power a ton of computers including Apple’s MacBook lineup. Spectre, which actually refers to two separate vulnerabilities, can affect chips from Intel, AMD and ARM. That covers desktop computers as well as smartphones.we can now understand the importance of this update by learning more about the spectre and meltdowns.Current situationCompanies like Google, Microsoft and Apple managed to get out ahead of these vulnerabilities before they were publicly announced. Contrary to this Microsoft got stuck as they were forced to recall some versions of its patch, including the one for AMD chips, after they stopped some computers from working.Microsoft’s latest patch which disables the mitigation for the Spectre variant 2 can be downloaded manually as it is only released for the impacted devices. The Note on the release also clearly state that one should only run this patch if you have impacted device.The update is available for all versions of Windows.User can deactivate the patch manually please click here on how to do it.