If you are trying to tighten up your security by adding Virtualization-Based Security (aka VBS) to your Windows 11 you might find this error:
Core Isolation Memory Integrity
Incompatible Drivers WDCSAM64_PREWIN8.SYS
Driver date: 11/29/2017Driver version: 1.2.0.0Published name: oem26.inf
This is an old driver that ships with both Windows 10 and Windows 11 and very few people need it. In fact we have never run into a situation of any machine using WDCSAM64_PREWIN8.SYS .
Fortunately, it is very easy to remove:
You do NOT need a reboot so you can immediately retry to enable CORE ISOLATION and you should see a prompt to reboot once Core Isolation > Memory Integrity is turned ON.
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Thank you for this post. This is still a fairly common problem, but your post is the only solution that actually works - even the Microsoft knowledge base was useless on this issue.
I have two wdsam.inf drivers, oem0.inf and oem6.inf. I have an internal Western Digital drive and and external one. Any hints about which driver needs to be deleted?
Thanks for the kind words Bob... we try :)
This problem cleared up after installing the wd discovery app
Which driver do you suggest deleting (one is for my C:\ drive, one is for an external USB drive that I still use)? Will I still be able to use the external drive?
Published Name: oem0.inf
Original Name: wdcsam.inf
Provider Name: Western Digital Technologies
Class Name: WDC_SAM
Class GUID: {8496e87e-c0a1-4102-9d8d-bd9a9b8b07a9}
Driver Version: 01/19/2011 1.0.9.0
Signer Name: Microsoft Windows Hardware Compatibility Publisher
Published Name: oem6.inf
Original Name: wdcsam.inf
Provider Name: Western Digital Technologies
Class Name: WDC_SAM
Class GUID: {8496e87e-c0a1-4102-9d8d-bd9a9b8b07a9}
Driver Version: 07/06/2020 4.55.25.661
Signer Name: Microsoft Windows Hardware Compatibility Publisher
So...which driver should I delete?
JFYI, here's the complete driver info:
Published Name: oem0.inf
Original Name: wdcsam.inf
Provider Name: Western Digital Technologies
Class Name: WDC_SAM
Class GUID: {8496e87e-c0a1-4102-9d8d-bd9a9b8b07a9}
Driver Version: 01/19/2011 1.0.9.0
Signer Name: Microsoft Windows Hardware Compatibility Publisher
Published Name: oem6.inf
Original Name: wdcsam.inf
Provider Name: Western Digital Technologies
Class Name: WDC_SAM
Class GUID: {8496e87e-c0a1-4102-9d8d-bd9a9b8b07a9}
Driver Version: 07/06/2020 4.55.25.661
Signer Name: Microsoft Windows Hardware Compatibility Publisher
bonjour, soucis idem resolu parfaitement... merci
hello, problems ditto solved perfectly... Thank you
Thanks, the above step worked. I had the issue with oem65.inf for Sennheiser Communications.
I used this method and it worked to get rid of the file. My issue is, I still can't turn on the Memory integrity, due driver incompatibilities. I have restarted my computer and still same issue. When I look to resolve any incompatibilities there are no drivers listed.
I have the same issue, where you able to resolve it?
same result - "one or more devices using the same specified INF". Without oem-number : "the specified file is not installed oem inf."
I also had the same issue where it was telling me that I could not delete the driver. But if you put a space, then type /force it will delete the driver without issue. Just copy this command and replace the with your specific INF number. pnputil /delete-driver oem.inf
I had the same message as Don when trying to remove driver oem47.inf in Windows 11 (Western Digital MyBook)
Did you run "As administrator"?
I tried the above solution but got the following message: Failed to delete driver package: One or more devices are presently installed using the specified INF. Suggestions?
Thanks for this uncomplicated documentation und solution
I did this an no errors where found.