A fundamental design flaw in Intel’s processor chips has forced a significant redesign of the Linux and Windows kernels to defang the chip-level security bug.
CVE-2017-5754 (Meltdown) and CVE-2017-5715 (Spectre) are two nasty exploits and you might want to check your systems if they are patched.
Luckily the Microsoft Security Response Center has released a PowerShell module named SpeculationControl which can be installed from the PowerShell Gallery.
Install-Module -Name SpeculationControl -Force
Additionally maybe look at Mike’s post