BSOD DRIVER_IRQL_NOT_LESS_OR_EQUAL (xhunter1.sys) Blue Screen

Hello Microsoft community, sorry for asking once again, for some reasons i've issues about login into my Microsoft account and this is going to be a little bit different.

After installing windows 10, everything works just fine except my old game which "Wolfteam".

When I attempt to play this game as quick as possible once login it works correctly without an error.

But when i do try to re log the game *instantly after closing it* or after some work in other applications i get a BSOD 


So when I figured out the .sys time i found out that this file size simultaneously getting resized from 63 to 31 kilobytes with the bsod

Before crash*

*After crash*

The game works perfectly on another pc with windows 10, and i'm not intending to repair or flash back to windows 8

I also opened the BSOD Viewer and found those 2 files causing errors


******xhunter1.sys size gets reduced after every bsod when i replace that file after reboot with the 63 kb version it doesn't crash but i'm not going to do that everytime opening the game*********

I checked Memory test using memtest and windows memory diagnostic tools and found no errors in memory

and also my Hard drive diagnostic tool found nothing.

Driver verify found no error, aswell as scfscan or system health checker and scanning the pc for viruses didn't prove helpful.

Updated my drivers to latest versions aswell as graphic drivers and installed which related to even windows 8.1

This error is really annoying, i'd like to play the game i got used to on this laptop and on windows 10, it works on other but not this one. 


Question Info

Last updated January 23, 2019 Views 4,500 Applies to:


Thank you for posting your concern here in Microsoft Community and welcome to the Windows 10 Family. I would be happy to assist you.

From the description provided, I understand that you are experiencing the error BSOD DRIVER_IRQL_NOT_LESS_OR_EQUAL (xhunter1.sys) while trying to play a particular game.

I would suggest you to follow the below recommended methods and check if it helps.

Method 1:

Follow the steps to install the drivers in compatibility mode.

  1. Find the main .exe file or shortcut you use to the application, right click it and select Properties

  2. Once the file properties box has loaded, click the Compatibility tab and then tick the box labelled Run this program in compatibility mode for

  3. Select the version of Windows that this application was designed to run on (you can use trial and error and see if it runs better under various scenarios). Once you are done, click OK.

  4. There are some advanced check boxes listed under the settings heading. If you know that you need to tweak things manually (for example running the app as an administrator), then you can enable these at the same timeit.

Method 2:

Step 1

Boot your machine in Safe Mode With Networking

1. Press the Windows + R keys to open the Run dialog, type msconfig, and click/tap on OK.

2. If prompted by UAC, click/tap on Yes.

3. Click/tap on the Boot tab in System Configuration.4. Under Boot options, check Safe boot and select (dot) Network, click/tap on O5. Click/tap on Restart to apply.         

Step 2

Place the computer in a clean boot state and check for the results. Please follow below.

A.  To disable all non-Microsoft services consult the article called Clean Boot. 


Note: After troubleshooting, refer to this section "How to reset the computer to start normally after clean boot troubleshooting"

Disclaimer: A clean boot is performed to start Windows by using a minimal set of drivers and startup programs. This helps eliminate software conflicts that occur when you install a program or an update or when you run a program in Windows. You may also troubleshoot or determine what conflict is causing the problem by performing a clean boot. You must log on to the computer as an administrator to be able to perform a clean boot. Your computer may temporarily lose some functionality when you perform a clean boot. When you start the computer normally, the functionality returns. However, you may receive the original error message, or experience the original behavior if the problem still exists. If the computer is connected to a network, network policy settings may prevent you from following these steps.

B.  To disable any 3rd party unwanted startup programs in Windows 8 and above, follow: 

(Applies to Windows 10 as well)

Hope the above information was helpful. If you need further information, feel free to write to us and we would be glad to help you.

Thank You.

4 people were helped by this reply


Did this solve your problem?

Sorry this didn't help.

Great! Thanks for marking this as the answer.

How satisfied are you with this reply?

Thanks for your feedback, it helps us improve the site.

How satisfied are you with this response?

Thanks for your feedback.

We do need the actual log files (called a DMP files) as they contain the only record of the sequence of events leading up to the crash, what drivers were loaded, and what was responsible.  

Please follow our instructions for finding and uploading the files we need to help you fix your computer. They can be found here
If you have any questions about the procedure please ask

Cat herder
Windows Insider MVP
MVP-Windows and Devices for IT

Did this solve your problem?

Sorry this didn't help.

Great! Thanks for marking this as the answer.

How satisfied are you with this reply?

Thanks for your feedback, it helps us improve the site.

How satisfied are you with this response?

Thanks for your feedback.