You also need to install CPU microcode/firmware fixes to protect against one of the Spectre variants, which can’t be combated by operating system patches alone. Intel’s Core i7-8700K CPU is vulnerable to Meltdown and Spectre. Check for a CPU firmware update Gordon Mah Ung Patches are also available for the Linux kernel. It contains mitigations against the CPU flaws. Chromebooks should have already updated to Chrome OS 63 in December. If your Mac doesn’t automatically apply updates, force it by going into the App Store’s Update tab. We do not recommend manually installing the Windows Meltdown patches if Microsoft hasn’t pushed them to your PC via Windows Update.Īpple quietly worked Meltdown protections into macOS High Sierra 10.13.2, which released in December. If it didn’t automatically update your PC, head to Start > Settings > Update & Security > Windows Update, then click the Check now button under “Update status.” (Alternatively, you can just search for “Windows Update,” which also works for Windows 7 and 8.) Your system should detect the available update and begin downloading it. Microsoft pushed out an emergency Windows patch late in the day on January 3. It’s an issue with the hardware itself, but the major operating system makers have rolled out updates that protect against the Meltdown and Spectre CPU flaws. The more severe flaw, Meltdown, affects “effectively every processor since 1995,” according to the Google security researchers that discovered it. First, and most important: Update your operating system right now.
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