This browser is no longer supported.
Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(76.8, 43%, 17%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EDD%3C/text%3E%3C/svg%3E)
Dear All,
from friday 09 April 2021 I've an issue with Windows Defender.
I've have about 50 PCs HP ELite Desktop 800 G6 that go to BSOD with error on WDfilter.sys driver....It seems a problem related at the last update of Windows Defender.
Have you any feedback regarding this issue.
Is there an update that correct this issue?
Many Thanks
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(89.60000000000001, 81%, 18%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ERA%3C/text%3E%3C/svg%3E)
Try open start and search for feedback and open the Feedback Hub app and report this issue.
How do you know this is an issue with this driver?
Check and see if there is any other pending updates?
@Dalan Daniele
Hi,
Just checking in to see if the information provided was helpful.
If the reply helped you, please remember to accept as answer.
If no, please reply and tell us the current situation in order to provide further help.
@Dalan Daniele
Hi,
We have not get information from you for several days.
If the reply is useful for you, please accept as answer. It will be helpful to other members who have same questions.
If you have any other confuse, please reply to us directly.
@Dalan Daniele
Hi,
As far as I know, there is no related known issues has been offered.
In most of the cases, the culprit of the WdFilter.sys BSOD is related to Windows Defender's bug or corruption of display drivers.
However, if Windows Defender does not seem to be the reason why WdFilter.sys not loaded on the system, you should run Driver Verifier and check for corrupted or unsigned devices drivers.
Press Windows key + X and select Command Prompt (Admin).
Click Yes on the UAC.
Type verifier and press Enter to execute the command.
On the new window, select Create standard settings and then click Next.
Click Automatically select all drivers installed on this computer.
Finally, click Finish button to start the verification process. You should get a report on the status of each driver, so follow the instructions to fix all problems.
Also, disable Windows Defender and turn off Real-Time protection to see if it solves the issue.
Hope above information can help you.
============================================
If the Answer is helpful, please click "Accept Answer" and upvote it.
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.