MetaDefender Core v4 v4.19.0 14. Knowledge Base Articles Are there any limitations regarding the MetaDefender Core v4 scan engines? Does the fixing updates for Meltdown and Spectre vulnerabilities affect any engines in MetaDefender Core v4? Engine clean-up instructions How do I check if "noexec" flag exists on a Linux OS? How do I collect verbose debug packages on MetaDefender Core v4 for Linux? How do I deploy MetaDefender Core v4 to an offline Linux environment? How do I deploy MetaDefender Core v4 to an offline Windows environment? How do I use MetaDefender Core v4 Workflows ? How to install MSE on Windows Server 2012 R2 and Windows Server 2016 How to transfer your Metadefender Core v4 scan history database Is Metadefender Core compromised while scanning files? Microsoft Visual C++ 2017 Redistributable requirement for Deep CDR 5.8 or newer Queue mechanism on Metadefender Core v4 Setting up Windows Defender as a custom engine in MetaDefender Core What features of MetaDefender Core version 3 are available in version 4 ? What file types are supported by DLP engine? What file types can be verified by MetaDefender v4? What is the frequency of signature/definition updates? What temporary folder do Custom Engines use ? Why does the deployment ID appear NULL In MetaDefender Core v4? Why is the scan stuck in "processing" state on WebScan UI, when the Core Processing History shows that it is already finished?