Lenovo Kernel Dma Protection, This policy only takes effect when Kernel DMA Protection is supported and enabled by the system firmware. Press the F1 key when the Lenovo logo is displayed to enter the ThinkPad setup. Turn on Intel Virtualization Technology for I/O (VT-d). Additional information: How to enable Virtualization Technology on Lenovo PC computers. Welcome to Lenovo and Motorola community. Related Articles Popular Topics: Tips for PC's Oct 8, 2021 · [Win10, Win11] Kernel DMA Protection and Device Encryption support is off, even with Intel Virtual Tech enabled. It has to be supported by the system at the time of manufacturing. In Windows 10 version 1803, only Intel VT-d is supported. May 30, 2023 · In my Uefi menu i dont see anywhere to turn off the Kernal DMA protection on my windows 11 PC. This post from MiniTool tells you how to check if Kernel DMA protection is enabled and how to disable Kernel DMA protection on Windows 11. If the website doesn't work properly without JavaScript enabled. via Windows Admin Center), the OS may report Boot DMA Protection not supported or it is not displayed as "ON. Technische Tipps für das Betriebssystem melden möglicherweise, dass der Boot-DMA-Schutz beim Konfigurieren von Secured-Core-Funktionen nicht unterstützt wird - Lenovo ThinkSystem SR630 V2 und SR650 V2 Secure Boot 設定がオフになっています。対象機種 ThinkPad T490 対策この問題は、BIOSで「Kernel DMA Protection」が有効化されたことが原因です。 BIOSの「Security」で、「Virtualization」を探します。「Enter」を押して「Security」にアクセスし、「DMA Protection」をオフにし Does anyone know how to disable kernel dma protection? Having issues to disable it on my new legion tower 7i gen 8 Mar 31, 2022 · Kernel DMA Protection is the feature designed to protect the system against this type of attack. x and later) for systems with newer Intel processors (2019 or later). Some users want to disable it. g. In case users do not want to use the Kernel DMA Protection feature, use the following information for ThinkPad models released 2017 and 2018. Jan 9, 2021 · Thunderbolt connections may provide DMA access to the host and pose a security risk. Find Virtualization under Security in the BIOS. When configuring secured-core features on the OS (e. Solution This problem is due to the activated Kernel DMA Protection in BIOS. Related Articles Popular Topics: Tips for PC's Kernel Direct Memory Access (DMA) Protection is a Windows security feature that protects against external peripherals from gaining unauthorized access to memory. IOMMU DMA Protection This uses IOMMU to explicitly allow what memory Thunderbolt devices can access via DMA. Please enable it to continue. Enable Secure Boot in BIOS Enable drive encryption such as BitLocker Apr 15, 2025 · If DMA Protection and DMAr Support are visible, set them from Auto/Disabled to Enabled If Pre-boot DMA Protection and Kernel DMA Protection indicator are visible, set them from Auto/Disabled to Enabled You may need to open NBIO Common Options to find these settings Otherwise, if you have an Intel CPU: Go to System Agent (SA) Configuration Welcome to Lenovo and Motorola community. There are two mechanisms to mitigate against Thunderbolt DMA attacks in Linux, and you would probably want to verify at least one of them is active. . Go to the Config page and enter Thunderbolt (TM) 3. For information on accessing the BIOS, see Recommended ways to enter BIOS - ThinkPad, ThinkCentre, ThinkStation. Kernel DMA Protection is a platform feature that can't be controlled via policy or by end user. We would like to show you a description here but the site won’t allow us. On supported systems, Kernel DMA Protection only works when virtualization-based security (VBS) and memory integrity settings in Core Isolation are enabled. ThinkPad models released 2017 and 2018 Reboot the system. Related Articles Popular Topics: Tips for PC's Oct 14, 2021 · Troubleshoot Done so far I found this MS page, that says If the current state of Kernel DMA Protection is OFF and Hyper-V - Virtualization Enabled in Firmware is NO: Reboot into BIOS settings Turn on Intel Virtualization Technology. Windows makes use of the system Input/Output Memory Management Unit (IOMMU) to block external peripherals from starting and performing DMA unless the drivers for these peripherals support memory isolation, such as DMA-remapping. DMA Shield is an enhanced hardware DMA protection feature that further enhances the protection of external abnormal hardware on the basis of the existing Windows security feature "kernel DMA protection"(Kernel DMA Protection | Microsoft Learn), preventing unauthorized access to memory by external hardware devices and avoiding DMA attacks; To We would like to show you a description here but the site won’t allow us. Solution This problem is due to the activated Kernel DMA Protection in BIOS. Sep 28, 2025 · Kernel DMA protection is a Windows security feature. Mar 15, 2025 · One of the advanced security features introduced in modern operating systems, including Windows 11, is Kernel DMA Protection. This feature is designed to protect sensitive information and maintain the integrity of data handling by restricting direct memory access (DMA) by unauthorized devices. Press Enter to access Security and then turn off DMA Protection. ACPI: DSDT 0x0000000000000000 0222DD (v02 LENOVO SKL 00000000 INTL 20160527) ACPI: XSDT 0x0000000000000000 000134 (v01 LENOVO TP-N24 00001230 PTEC 00000002) Aug 7, 2025 · Kernel DMA Protection is a security option in Windows that prevents devices from using Direct Memory Access (DMA) without authorization, especially during boot-up or when the screen is locked. " Enable Kernel DMA protections in BIOS and Operating System Kernel DMA protections are available in Windows (Windows 10 1803 RS4 and later) and Linux (kernel 5. Can you please advise on how this can be done? Thank you. It is automatically enabled and cannot be disabled if ‘Kernel DMA Protection’ is enabled. Anonymous Oct 8, 2021, 4:25 PM Welcome to Lenovo and Motorola community. Sep 17, 2025 · OEM manufacturers such as Dell, Lenovo, and HP are starting to add DMA protection to the BIOS to prevent unintended Direct Memory Attacks for all DMA-capable devices during the boot process. zpjt, gj0une, ook9cx, mw9f8, g4qg, rz7y28, 5sxec, irdcwl, nz2bp, ko2hl,