Ndisuio.sys

Hi

What is the exact model varient of the Compaq A900 as their are 100+ of them, shopuld be on a sticker underneath, likely A935ea or similar, just need this in case we need to re-install any drivers as various models have different hardware and thus different drivers.

What Service Pack for Vista are you using?

Have you had a malware (virus) infection of late that was cleaned up and what is your antivirus/security applications?

When you ran sfc /scannow from the command prompt did you do this in elevated admin mode? if not some settings and files may not copy or work well, so try again and click Start and type CMD in the Start Search box then right click it and choose Run as Administrator and type the same command in again.


Check in Services (click Start and type Services into the Start Search box), look down the list for WLAN AutoConfig and again make sure its Started and startup type is Automatic.


Could you check a registry key for me, so click Start and type in the Start Search box regedit and hit enter, then navigate to this location here HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\Ndisuio and what in the right hand window next to Start do you have as a figure eg. 0x00000003 (3)

Dont change anything yet, but right click the Ndisuio folder and choose export and save somewhere as a backup, then you could change the figure to 2, to do this double click that Start key and change the value data to 2 and click OK


*do each one of the above in turn and check at each stage if Wifi is working or not.

 

Hi

Cheers for the updated info, go back into regedit and change that figure back to 3 again in HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\Ndisuio and also check that this one HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet002/Services/Ndisuio is also set to 3

Reboot and try starting the service again, also go into Network and Sharing Center and click Change Adapter Settings and right click and disable then re-enable and check the Services again to see if they Start.


I just get a sneeky feeling that malware is the cause of this or the crash you had is leaning towards data corruption of your HDD, but to rule out malware, please run through the below and start a new thread in the Malware forum and have our experts in their give your logs a once over, just would like to rule malware out.

Do you have a Windows Vista CD/DVD? just in case need a repair install.
If you check System Restore, do you have any restore points from a day or so earlier than the crash? just type System Restore into the Start Search box and then choose, Choose a Different Restore Point and check the list for a restore point before the crash, a System Restore may actually put any missing files back, but do create one if/before you restore back.

 

Hi


What are the devices in Device Manager with the yellow ! marks?




Do mention the above devices first before following the below as I woud like to know what devices are listing this error, below is posted so I remember what I was going to posts

• IN Services navigate to 'WLAN AutoConfig' and open it up make sure its set to Started and startup type is set to Automatic, then click the dependancies tab and write down all the services listed and then goto each one and make sure they are Started and set to Automatic.
  
• Can follow this HERE and the instruction for code 19 in tapping at boot F8 to bring up the safe mode menu and try Last Know Good, which should re-install a saved good registry.

 

Please check your malware thread again. Combo removed some drivers that it should not have.

 

I do think the only way for you to fix the wireless is to visit the manufacterers website and find your model and download the appropriate drivers.

 

Hi


Try this one first

• IN Services navigate to 'WLAN AutoConfig' and open it up make sure its set to Started and startup type is set to Automatic, then click the dependancies tab and write down all the services listed and then goto each one and make sure they are Started and set to Automatic.

Then if that doesnt help, open Network and Sharing Center > Change Adapter Settings (menu list on the left) then right click the Wireless icon and choose Properties and then Networking tab and look down the list for

WAN Miniport (IP) - WinpkFilter Miniport
WAN Miniport (IP v6) - WinpkFilter Miniport
WAN Miniport (Network Monitor) - WinpkFilter Miniport

and untick then click uninstall on each of those ones ONLY, then reboot and check your Wireless again.

 

In Network and Sharing, click the mange wireless networks. There should be a tab at the top for "adapter properties", click that and then scroll down to internet protocol versions 6 and then 4 and hit properties for both....see if they are set to auto.

 

I have forgotten....xp? If so, right click the wireless connection / properties / and on the top, check the configuration tab.

 

Do you have a usb dongle that you can use to test? My other machine lost the wireless and I had to resort to a usb wifi adapter.

 

Hi

What I would do as TimW has given you the all clear on malware on your PC which is a great sign, is to, uninstall the Wifi devices in Device Manager and then look in Add/remove for any Wifi managers or device drivers and uninstall them, as I feel in part you may have Windows and a Dell Wifi Manager fighting over who controls Wifi.

Once you have all devices uninstalled, only install the Chipset from HERE and reboot and then installt the Wifi driver from HERE and see if Windows Wireless Zero Config picks it up, may need to enter services and set the WZC (Wireless Zero Configuration) service to Started and Automatic.

 

Hi

Understand completly, appendix not nice, had mine out years ago, in emergency op, was about to go pop.

In Device Manager what items have yellow ! marks now?

The chipset should have been fine as its exact one for your model, so that could be crucial (kinda wondering if the malware did more damage than we are seeing), as well as a reboot and windows re-installing before you installed the updated drivers, so seems it put the old ones back, just try this for now and uninstall the Atheros drivers, and dont reboot, then install the latest ones I linked too and then reboot and check.


As somethink I did notice on a compaq laptop the other day and while I know its likely no the case here, does yours have a little button on the case to turn on/off the WiFi? just check its not off.

 

Hi

IN Services navigate to 'WLAN service' and open it up and click the dependancies tab and write down all the services listed and then goto each one and make sure they are Started and set to Automatic. A dependancy service is not started and that in turn seems to be causing the wifi service not to start.

Also post what dependancy services are listed for me.

Cheers.

 

Hi

Cheers for the services list and what they are doing, sadly thing that you need to re-install Windows or try and run a repair, do you have or can you borrow a Windows Vista CD?

If you can find a Vista Cd then run from an elevated CMD command prompt sfc /scannow, to get to an elevated CMD prompt click Start and type cmd into the start search box and right click CMD and choose run as administrator and then type sfc /scannow and hit enter.

Maybe worth saving all the important docs and files to DVD/CD/xHDD and clean install from maker.

 

If you can run the recovery to factory spec from the partition then that is the best option and will put the machine back to the day you bought it with drivers etc all installed, and a good option, it can highlight if the wifi doesnt work when this has been run and all apps installed, that its a hardware error and cannot be fixed with software drivers/tricks. TBH a restore to factory is the only thing I can think of left to try as I cannot think of any other options we have not tried to get this to work, hate using a re-install but its a last resort.


BUT do backup all your important files, emails, pictures etc before running this as everything is removed, can as you have Vista run the Windows Easy Transfer app, its good but I would still make a manual backup of any important files as well.

DO also make sure you make a list of the applications you had installed as you may have installed ones that did not come with the PC originally, and make sure you have the original disks, downloads and serial keys if needed.

Sadly no, they wont allow the running of SFC, they will do the same as the Recovery to Factory.

 

Hi

Yeah, seems with now the lenght of time spent on this that, while drastic this is the best option and please do let us know how you get on.