I have configured my filter driver start type as SERVICE_SYSTEM_START in .inf file, Installed the filter driver manually using the instructions on the Light weight filter driver sample, rebooted the virtual machine to know if my driver is loaded. in the ntbtlog.txt which has all the driver information it says "Did not load driver ".
Starting with Windows Vista x64 platform, All the drivers that are not signed will not be loaded by the Windows, So that was the reason for Not loading Driver. To fix this I have used "Disable Signature Enforcement" option in the Boot menu by pressing F8 during the boot. This would disable the restriction while development of the driver.
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I have a KMDF device driver that has an inf file and I would like to know how would I start/load my device driver before any other application or kernel mode drivers on boot up but load after the kernel has completely loaded ? My device driver targets Windows 8.1 at the moment have yet to ensure compatibility with Windows 10/11. Would creating a service be the only way to ensure that this driver loads first ?
Thanks
I'm remote-debugging a Windows kernel-mode driver using WinDbg. The driver has issues in the initialization routine, leading to a bugcheck/crash when installing the device driver. When I detach the debugger, the target PC reboots and runs again into the same bugcheck.
In order to test a new version of the driver, I therefore have to boot into safe mode, uninstall the device using device manager and reboot into normal mode.
Is there any way to simplify this workflow so that the device driver is automatically removed upon rebooting after a bugcheck?
Additional infos:
I'm using dpinst to install the driver on the target PC
use .Kdfiles to pull a replacement driver during boot
Documentation From MS
Write Up in Nt Insider From Osr Online
if you are using windows 10 then you can leverage the -m option to provide a partial name
and forego the dospath C:\ NtPath \.\xx , %SystemRoot%
confusions in the map file formats ,
or as described here
I am planning to get into windows driver development and start to learn windows wdk
But I know that windows blocks loading unsigned drivers and I have to purchase a digital certificate but it's too expensive for me and I won't be developing drivers that I'll distribute to customers now
I'll be only testing on my home computer
I knew that I could turn off the signature enforcement and restart but the problem is that I am not the only one who uses the computer and can't make the test mode on all the time , and need my driver to be running
So when I load the driver in test mode then restart and go back to default settings will the driver load again ? Or I'll have to be running in test mode all the time ?
I mean with loading it permanently that I don't need to boot in test mode every time I want my driver to be running but load it once and return back with the driver running
My current windows is 8.1 64 bit
I recommend you to use a VM to this, thats how I does it. Enter the VM to TEST MODE and also you can attach WinDbg KD to the VM so you will be able to debug your driver. Without being able to debug your driver it will be very hard for you to write drivers and run them.
TESTMODE - https://technet.microsoft.com/en-us/ff553484%28v=vs.96%29?f=255&MSPPError=-2147217396
VM Kernel Debugging - https://learn.microsoft.com/en-us/windows-hardware/drivers/debugger/attaching-to-a-virtual-machine--kernel-mode-
Try to disable integrity check - bcdedit /set nointegritychecks on
I'm deploying windows 10 via SCCM on new computer it loads into PXE then reboot.. When I try ipconfig I'm not getting ip so I though it will be problem with NIC.. so I tried to load all available drivers for this desktop and still not working.. I'm out of ideas..
Thanks
"so I tried to load all available drivers for this desktop and still not working.. "
Did you mean that you add all drivers of this model into the boot image which associated with the OSD task sequence? If so, that is not recommended by MS. You should only import the actually required NIC drivers or storage drivers into the boot images(both x86 and x64).
Another important point here is you should add the NIC drivers match the boot image version instead of the OS version you are trying to deploy. For example, add NIC drivers for win10 to the boot image 10.x.xxxxx (which is from the ADK 10 RTM or later).
Why do we have to restart windows in order to bring newly installed device driver into effect ? How does the driver loading mechanism differ from that of Linux ?
Windows could load your function driver dynamically by using CreateService and StartService. Also, you can use ZwLoadDriver to load a driver.
But, you have to load some types of driver after restart such as class driver, filter driver etc. Because these drivers are depended on other system drivers. If your driver is loaded too late. Your driver won't work correctly.
For more detail, please check MSDN. You can control the order of driver loading accurately by using registry.