What is ql40xx.sys?

ql40xx.sys is a DLL file which is responsible for component QLogic iSCSI Storport Miniport Driver in Windows systems like Windows 7 Professional Edition 64-bit. It was created on 7/13/2009 2:59:34 PM, the size is 128592 bytes and its version is 2.1.3.20.

ql40xx.sys can be infected by virus TrojanDownloader:Win32/Agent.EM which spreads through social network GovLoop to download and install malware Auslogics BoostSpeed on the affected machines.

Once infected, the file path of ql40xx.sys will be re-set as:
C:\WINDOWS\System32\DriverStore\FileRepository\ql40xx.inf_amd64_neutral_77a826e5c0a07842\

And the software like PC game Total War: Shogun 2, Web browser BlackBerry8520 5.0.0.681 or antivirus Avast Pro Antivirus can't start up, along with error message:
ql40xx.sys is missing or was not found.

When you restart your computer, you would receive ql40xx.sys blue screen of death (BSOD), along with stop error code:
0X1947461


How to fix ql40xx.sys error?

ql40xx.sys error can be easily fixed by ql40xx.sys file repair tool DLL Suite:
1. Download, install and run DLL Suite
2. Click Start Scan to check ql40xx.sys errors
3. Click Fix ALL to repair ql40xx.sys problem


How to download ql40xx.sys file for free?

DLL Suite allows its users to download ql40xx.sys for free by taking the following steps:

1. Download, install and run DLL Suite
2. Click Start Scan to check ql40xx.sys file
3. Free download ql40xx.sys from the open web page


DLL Suite



ql40xx.sys related files:

ql40xx.sys related files