If you are one of them, you come to the right place.
This post fromMiniToolprovides solutions.
Core Isolationis a feature in Windows Security that provide an excellent security system for your Windows 11/10.
However, some users say that they meet the Wdcsam64_prewin8.sys Core Isolation turned off issue.
-from Microsoft
What is Wdcsam64_prewin8.sys?
It is a driver from Western Digital Technologies.
Why does it cause the Core Isolation turned off issue?
The reasons include corrupted system files, corrupt drivers, and driver Incompatibility issues.
Tip: Its highly recommended to back up your data or system withMiniTool ShadowMaker.
Your important data may get lost since your gear may be infected without enabling Core Isolocation.
Besides, the corrupted system files can cause your system to boot failure.
MiniTool ShadowMaker TrialClick to Download100%Clean & Safe
Now, lets see how to fix the issue.
Here is how to do that:
Step 1: Typecmdin theSearchbox and choose theRun as administratoroption.
Fix 2: Update the Wdcsam64_prewin8.sys Driver
Step 1: Open theRunbox and typedevmgmt.msc.
Then pressEnterto go toDevice Manager.
Step 2: Double-clickDisplay adaptersto expand it.
Then find and right-click wdcsam64_prewin8.sys and chooseUpdate driver.
Step 3: You will be asked how you want to search for drivers in the pop-up window.
You should chooseSearch automatically for updated driver softwareand then follow the instructions to complete the process.
Running this tool can fix the wdcsam64_prewin8.sys Core Isolation turned off issue.
To do that, you just need to openCommand Promptand then typesfc/scannowand press theEnterkey.
Then, you’re able to find out if the error has been fixed.
If there are, you could download and install them.
How to fix the memory integrity cannot be turned on due to ftdibus.sys issue on Windows 11?
Here are the answers for you.
Final Words
To sum up, this post has introduced how to fix the Wdcsam64_prewin8.sys issue.
If you want to fix the issue, you’re free to take the above solutions.
