Microsoft has added a new and very important detail on the support page describing incompatibilities between antivirus (AV) products and the recent Windows Meltdown and Spectre patches.
According to an update added this week, Microsoft says that Windows users will not receive the January 2018 Patch Tuesday security updates, or any subsequent Patch Tuesday security updates, unless the antivirus program they are using becomes compatible with the Windows Meltdown and Spectre patches.
The AV program needs to add the following key:
Code: Select all
Key="HKEY_LOCAL_MACHINE" Subkey="SOFTWARE\Microsoft\Windows\CurrentVersion\QualityCompat" Value="cadca5fe-87d3-4b96-b7fb-a231484277cc" Type="REG_DWORD”
You can add it yourself or use the .reg file from bleepingcomputer. However, if your AV is incomparable, it may cause a BSOD.