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BSOD (DRIVER_IRQL_NOT_LESS_OR_EQUAL) randomly Windows 10


My computer experienced randomly BSOD with DRIVER_IRQL_NOT_LESS_OR_EQUAL. It started from last month. No hardware changed from January.

I remembered the first two crash occured while downloading a big file and I guess may related to the my usb wireless driver? But I have install all newest driver for the usb wireless adaptor. I also updated to all the newest driver for motherboard, video card, etc. Please help to identify the real problem is.

Thanks!
  • SKYLAKE6700-04_07_2016_Thu_105341_65.zip (812.8 KB, 5 views)

Hi @cxterm .

First of all, make it sure that you are applying that ZyXEL Wireless AC USB Adapter to a USB2 port and not to a USB3 port.
The driver (rtwlanu.sys) gives a hint that it is a USB2 device.

Let us know about it before any further troubleshooting.
____________________________________________________________________________________
Code:
BugCheck D1, {28, 2, 0, fffff800e632d661}  Probably caused by : USBXHCI.SYS ( USBXHCI!Bulk_ProcessTransferEventWithED1+c1 )  Followup:     MachineOwner ---
Code:
fffff803`91086108  fffff801`91e8117fUnable to load image SystemRootSystem32drivers
twlanu.sys, Win32 error 0n2 *** WARNING: Unable to verify timestamp for rtwlanu.sys *** ERROR: Module load completed but symbols could not be loaded for rtwlanu.sysrtwlanu+0xc117f

Hi @cxterm .

First of all, make it sure that you are applying that ZyXEL Wireless AC USB Adapter to a USB2 port and not to a USB3 port.
The driver (rtwlanu.sys) gives a hint that it is a USB2 device.

Let us know about it before any further troubleshooting.
Yes. I plug the ZyXEL wireless adaptor in usb3 port because it sold as AC1200 usb 3.0 adaptor:

I will plug it to a usb 2.0 port to see if any different. Thanks for your help!

Yes. I plug the ZyXEL wireless adaptor in usb3 port because it sold as AC1200 usb 3.0 adaptor:

I will plug it to a usb 2.0 port to see if any different. Thanks for your help!
The driver is marked as USB2 adapter.
  • What is rtwlanu.sys ? | System Explorer
  • Rtwlanu.sys driver | What is Rtwlanu.sys file?
  • Driver Reference Table

That is why I am suggesting it.

If it does not change the situation, let us see the further dumps.

Thanks. I plug the adaptor to a usb 2.0 port, so far the system works well. But I may need several days to make sure the BSOD gone because it may happened after 2 or 3 days or even a week. By the way, I saw the most recently crash caused by the USBXHCI.SYS, and the other crash caused by Wdf01000.sys. Did you think that casued by the wireless adaptor also?

That's right .... you need to give it a time to decide about the result.

The Wdf01000.sys is not a right reason of the BSOD. Perhaps that crash failed to find the crasher and blamed the Kernel Mode Driver Framework Runtime wrongly.

USBXHCI is definitely related to this issue. It is the USB3 host controller driver, where the network adapter was plugged in.

So far no problem about 1 day. I noticed there is a warining related to usb:

The driver DriverWudfRd failed to load for the device SWDWPDBUSENUM\_??_USBSTOR#Disk&Ven_Generic&Prod_STORAGE_DEVICE&Rev_0903#000000000903&0#{53f56307-b6bf-11d0-94f2-00a0c91efb8b}.

Not sure if I can ignore this, it looks the system runing fine. every device in computer works well.

You may ignore this event log.

So far a month no problem at all. Thanks!

Welcome. Let us know for any further issue.

BSOD (DRIVER_IRQL_NOT_LESS_OR_EQUAL) randomly Windows 10