Can you provide more info?
Main thread is here: January Intel Meltdown Patches
Related: 4078130: Update to disable mitigation against Spectre, Variant 2 - Windows Server 2008/ Windows 7 / Windows Server 2008 R2 / Windows Server 2012 / Windows 8.1 / Windows Server 2012 R2 / Windows 10 / Windows Server 2016 - KB4078130