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Windows 7: Windows Defender 0x80070424 Error

06 Aug 2012   #31
ruteger

Windows 7 Professional 64 Bit
 
 

Hey I'm new here!
I had the same exact issue (also my windows update/firewall/defender) stopped.

I followed all the instruction in this thread, except at the last part there was no registry folder at all for windefender in the registry location. I tried the registry file anyway, and at least now Windows Defender shows up in service.msi, I tried to start it says

"Error 126: The specified module cannot be found"

Any ideas, could it be the parameters? Thanks!


My System SpecsSystem Spec
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10 Aug 2012   #32
shawn77

32 bit
 
 

Windows defender is crap,better avoid it
My System SpecsSystem Spec
15 Aug 2012   #33
DTS

Windows 7 Home Premium 64bit
 
 

Quote   Quote: Originally Posted by phw8558 View Post
You don't have a "CurrentControlSet" subfolder? It should be listed right below the two you named. If not try this anyhow just be sure to back up your registry before hand. After backing up merge this with your registry and reboot. Report any changes. Attachment 158601

It works !! Finally problem solved thanks.
My System SpecsSystem Spec
.

15 Aug 2012   #34
Layback Bear

Windows 7 Pro. 64/SP-1
 
 

Very old post. But here is the new one. Not the same but better.
Windows Defender Offline
When you install MSE it will turn off the built in Windows 7 Defender.
Microsoft Security Essentials - Free Antivirus for Windows
Just a little something to make for happy computing.
My System SpecsSystem Spec
06 Apr 2013   #35
m1post

Win7 Ultimate x64 on Dell Studio XPS PC & Win8 Pro x64 on XPS13 laptop
 
 
Fixed Windows Update & Windows Defender

Quote   Quote: Originally Posted by phw8558 View Post
Ok. First can you check if you have a windows defender service running by going to start, and search for services. Second check your registry for this key: H_KEY_LOCAL_MACHINE/System/CurrentControlSet/services/WinDefend. In the WinDefend folder there should be 3 subfolders labeled parameters, security and triggerinfo. Let me know if you have the windefend service running or these keys in your registry.
Quote   Quote: Originally Posted by phw8558 View Post
You don't have a "CurrentControlSet" subfolder? It should be listed right below the two you named. If not try this anyhow just be sure to back up your registry before hand. After backing up merge this with your registry and reboot. Report any changes. Attachment 158601
I know this is an old thread, but I just wanted to say a BIG THANK YOU to phw8558.

My Windows Update Service was not working on my PC (for a few months(12) from a virus I got - what-I've been busy - spent ages (when I could) trying to get it going, but to no avail.

So, I eventually/reluctantly set aside 2 days to do a full rebuild but though I would have a final dig around.

Found a separate thread on SevenForums that pointed to Windows Defender (WD). (never realised it could be WD)
Checked mine - not on, and getting error "The specified service does not exist as an installed service. (Error Code: 0x80070424)." when I tried to switch it on. (I was running McAfee, which I realise may have switched it off, but even after I uninstalled it, I was still getting the same error).

Then came across this thread. I was a bit dubious about downloading the file, and then merging with my registry, but though I had nothing to lose!

==============================================================
So, here's what I done.
1. Created a System Restore Point - (Create a restore point)
NOTE! - This will overwrite any previous system restores (automatically created weekly)
2. Stopped Windows Update Service (may not have made a difference, but wanted to have a complete clean slate - again, wasn't working anyway - and it will restart on reboot) [Start>Control Panel>Administrative Tools>Services - or Services.msc from search]

3. Uninstalled McAfee - (How to uninstall or reinstall supported McAfee products using the Consumer Products Removal tool (MCPR))

4. Restarted PC (a couple of times)

5. Ran Malwarebytes Anti-Malware (available Malwarebytes : Free anti-malware download)

6. Opened Regedit & backed it up (type regedit in windows search, open it, then File>Export)

7. Downloaded windefend.reg from phw8558 post (thank you phw8558 )

8. Merge registry (On Regedit again, File>Import, select downloaded windefend & save/open)

9. Restart PC

10. Start Windows Defender (from Control Panel)

11. Click 'Check for updates now'

12. Once WD is complete, windows Update service starts automatically

13. Once it's all up and running, Restart PC

14. I would also suggest running a last 'Malwarebytes Anti-Malware' to confirm all clear.

15. You can then reinstall you McAfee, or use MSE (Microsoft Security Essentials - Microsoft Windows)
==============================================================

Anyway - hope that helps someone in the same predicament.

Thanks again to all who post here and other forums. For us amateurs, you're lifesavers

Michael
My System SpecsSystem Spec
28 Aug 2013   #36
lubkens05

Win 7 Pro x64
 
 
Thanks

Quote   Quote: Originally Posted by phw8558 View Post
You don't have a "CurrentControlSet" subfolder? It should be listed right below the two you named. If not try this anyhow just be sure to back up your registry before hand. After backing up merge this with your registry and reboot. Report any changes. Attachment 158601
I know this is old, but I wanted to thank phw8558 for the reg file. I had no 'Windows Defender' listed in services and it wasn't in the currentcontrolset registry either. That, coupled with replacing the Windows Defender program files as listed here: Every download ends with message "File XXX contained a virus and - Microsoft Community fixed my issue.
My System SpecsSystem Spec
04 Aug 2015   #37
atie

7 professional 64bit
 
 
hi

I have the same problem right now. my windows defender doesnt turn on and also my windows update and fire wall. I did all the steps that u mentioned and it still doesnt turn on
My System SpecsSystem Spec
04 Aug 2015   #38
Layback Bear

Windows 7 Pro. 64/SP-1
 
 

Hi atie and welcome to the forum.

I think it would be best for you to start your own thread and state exactly your problem.
My System SpecsSystem Spec
19 Aug 2015   #39
Alcarin

Windows 7 Pro x64
 
 

I just want to thank phw8558 for his registry file.
Even without the registry folder "HKLM/System/CurrentControlSet/services/WinDefend" in my registry, the merge fixed the service.
My System SpecsSystem Spec
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