![]() Disabled deactivates code integrity, even if it was enabled interactively via the Settings app. These settings can be used to configure three features for Secured CoreĪnother menu is used to configure HVCI, for which four options are available. The Security extension has its own tab for this purpose. The Windows Admin Center (WAC) can be used to check the status of all Secured Core components at a glance. Information about the virtualization extensions can be found in the Task Manager under Performance or via msinfo32.exe. If you want to quickly find out if Secure Boot is enabled, execute the following command in a PowerShell session using elevated privileges: Features such as Secure Boot are already enabled by default on most machines, as are CPU extensions for virtualization. Some components need to be present in the system, such as the aforementioned TPM 2.0, the UEFI firmware, or a modern processor. HVCI requires compatible drivers, and their suitability can be checked using the DGReadiness tool. Without it, malware in the context of the kernel would have access to all of the PC's memory. It monitors kernel code and only allows it to be executed if it has been verified as legitimate. One VBS feature is hypervisor-protected code integrity (HVCI). VBS uses a kernel shielded by the hypervisor to protect critical OS functions Therefore, the OS kernel and user-mode processes cannot access the protected functions and data directly. VBS runs a separate secure kernel at a higher trust level than the actual Windows system kernel. HVCI as a VBS featureįinally, Secured Core relies on virtualization-based security (VBS), which uses the hypervisor to isolate critical functions from the rest of the operating system, thus protecting them from malware infection. ![]() However, in the next phase, Windows does not rely on UEFI integrity, but rather uses System Guard (comprising Secure Launch and System Management Mode (SMM) Protection) to ensure that the system is in a trustworthy state.Īnother mechanism is Kernel DMA Protection, which is intended to prevent attackers from gaining access to the computer's RAM via external PCI devices and thus stealing passwords or injecting malware.ĭevices whose drivers are not compatible with DMA remapping are prevented from direct memory access by default until an authorized user is logged onto the system.
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