![]() Memory integrity-compatible drivers must be installed. Minimum 8GB (Only applicable for 圆4 processors) Intel 8th generation or later starting with Windows 11, version 22H2 (11th generation Core processors and newer only for Windows 11, version 21H2).Memory integrity is turned on by default when a PC meets the following minimum hardware features: Component Hardware features for automatic enablement ![]() IT Pros and end users always have the final control of whether memory integrity is enabled. On other systems that don't meet the memory integrity auto-enablement requirements, customers can opt in using any of the methods described in how to enable memory integrity. It's also turned on by default on all Secured-core PCs. Memory integrity is turned on by default on clean installs of Windows 11, and previously only on clean installs of Windows 10 in S mode, on compatible hardware as described in this article. See Virtualization Based Security System Resource Protections for more details on these protections. Device Guard is no longer used except to locate memory integrity and VBS settings in Group Policy or the Windows registry. If there are, you can download and install them.Memory integrity is sometimes referred to as hypervisor-protected code integrity (HVCI) or hypervisor enforced code integrity, and was originally released as part of Device Guard. You can go to Settings > Updates & Security > click Check for updates to detect if there are some new updates available. If the above fixes are not working, updating your Windows to the latest version may be helpful to get rid of the “Core Isolation turned off due to wdcsam64_prewin8.sys incompatibility” error. To do that, you just need to open Command Prompt and then type sfc/scannow and press the Enter key. Then, you can check if the error has been fixed. Running this tool can fix the “wdcsam64_prewin8.sys Core Isolation turned off” issue. SFC (System File Checker) is a Windows built-in tool used for replacing damaged, lost, or changed system files with good system files. You should choose Search automatically for updated driver software and then follow the instructions to complete the process. Step 3: You will be asked how you want to search for drivers in the pop-up window. Then find and right-click wdcsam64_prewin8.sys and choose Update driver. Step 2: Double-click Display adapters to expand it. Then press Enter to go to Device Manager. Step 1: Open the Run box and type devmgmt.msc. Fix 2: Update the Wdcsam64_prewin8.sys Driver Step 3: Then, type the following command, replacing the Published name with the driver name, for example pnputil /delete-driver oem46.inf /uninstall /force. Step 2: Under the Provider Name table in Windows Security, find the line containing the wdcsam64_prewin8.sys , and note down its Published name. Step 1: Type cmd in the Search box and choose the Run as administrator option. How to Fix Wdcsam64_prewin8.sys Core Isolation Turned off Fix 1: Remove the Driver Using the DISM and PNPUtil Toolįirst, you can try to remove the wdcsam64_prewin8.sys driver via DISM and PNPUtil tool. MiniTool ShadowMaker Trial Click to Download 100%Clean & Safe You can restore your system to the normal state if you have backed it up in advance. Besides, the corrupted system files can cause your system to boot failure. Your important data may get lost since your computer may be infected without enabling Core Isolocation. Tip: It’s highly recommended to back up your data or system with MiniTool ShadowMaker. Why does it cause the “Core Isolation turned off” issue? The reasons include corrupted system files, corrupt drivers, and driver Incompatibility issues. What is Wdcsam64_prewin8.sys? It is a driver from Western Digital Technologies. Within the last day or so, I all of a sudden got a notification that Core Isolation has been disabled due to an incompatible driver, WDCSAM64_PREWIN8.SYS. I have been running Windows 11 successfully on my Microsoft Surface for some time now with no problems. However, some users say that they meet the “Wdcsam64_prewin8.sys Core Isolation turned off” issue. ![]() How to Fix Wdcsam64_prewin8.sys Core Isolation Turned offĬore Isolation is a feature in Windows Security that provide an excellent security system for your Windows 11/10.This post from MiniTool provides solutions. If you are one of them, you come to the right place. ![]() Some Windows 11 users report that they receive the “Core Isolation turned off due to wdcsam64_prewin8.sys incompatibility” error message on Windows Security.
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