I’ve encounter Error number: 0×80070424 in Windows Update on one of my PC. If you have 0×80070424 i guess you will not able to perform any windows update including using the windows update website. After googling a while i found that Error number: 0×80070424 in Windows Update is caused by some of the dll registration problem.
To solve the Error number: 0×80070424 in Windows Update follow the steps below:-
- Click on Start -> Run
- and paste the command below and enter
%SYSTEMROOT%\SYSTEM32\REGSVR32.EXE %SYSTEMROOT%\SYSTEM32\WUAUENG.DLL
This line use to reregistering WUAUENG.DLL in window.
- You are done! Launch your windows update again, you should be able to perform update now.



It works!!!!!. Thank you, very much
Worked, been looking for a soloution for ages! Thanks!
I have windows vista 64 and simply registering the dll files did not work for me. I was missing the “windows Modules installer”. I found this page and followed the instructions under scenario III.
http://www.vistax64.com/tutorials/258701-windows-update-error-80070424-a.html
paste in
regsvr32.exe wuaueng.dll
worked for me
still not working…pls i need help..
nothing works for me the error is still there im on vista x64 sp1
if none of these work, i found a fix that does it for me…… open security centre, and click ‘change settings’…. uncheck the box marked ‘use microsoft update’ and confirm the change. run update, then go back and re-apply the software by clicking the yellow box which offers updates on other products. i’m on vista ultimate pro sp1, and this is the only fix i found anywhere that actually works…. there’s also the plus point that anyone can do it, using the vista platform rather than the ‘semi-code’ in the background.
this thing works for me! to vista users, try open start, all programs, accesories, right click command prompt and open as administrator, copy- paste the command given in the solution and press enter. GOD bless.
worked for me:D
thanks
> Click Start
> Choose Run
> Type regsvr32.exe wuaueng.dll
> Click OK
100% Working 4 me
This failed at first. I disabled UAC, Rebooted and tried your fix. It worked perfectly. Thanks!
does not help at all. still get error 80070424 and 8007005.
does anyone know how to fix this?
Just got my reply from Microsoft
Dear Sir/Madam,
Thank you for your email about issues with Windows Updates.
I am sorry to hear that you are unable to download Updates. There are a number of ways that you can obtain technical information and support from our team.
A useful resource is the Knowledge Base on our website, where we have published a large collection of articles and Frequently Asked Questions (FAQs) about our products. You can access it by going to;
http://support.microsoft.com/search/?adv=1
You can also go online and visit our Newsgroup to post your technical question at the following website, or alternatively chat with one of our Most Valuable Professionals (MVPs);
http://support.microsoft.com/newsgroups/default.aspx
If you do not find the answer that you are looking for or wish to discuss alternative support options, please call our Customer Services team on 0870 60 10 100. Our lines are open from 8.00am to 6.00pm, Monday to Friday, excluding public holidays. These support options can also be viewed at;
http://support.microsoft.com/gp/services
Thank you for getting in touch.
Kind regards,
AZMA NASEER
Customer Service Professional
Microsoft Customer Services
none of this woreked i tried everything plz help me
tried this also:
http://social.technet.microsoft.com/forums/en-US/itprovistaapps/thread/e2a2d814-60ad-4c5b-9507-2370cbe29f7c/#page:1
And still does not work!!!
I am now in contact with Microsoft and awaiting a reply……….
Disabled firewall and tried again still did not work
mine still does not work!!
Running CMD.EXE as administrator and pasting %SYSTEMROOT%\SYSTEM32\REGSVR32.EXE %SYSTEMROOT%\SYSTEM32\WUAUENG.DLL
little box appears and tell me it was successfull, then try to run update but still get same error:
Code80070424 Windows Update encountered an unknown error
PS: running vista 64 service pack 1