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Windows 10 windows defender problem


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#1 Antos2

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Posted 17 January 2016 - 10:46 AM

Hello everyone,

 

I can't turn on windows defender (error 0x80070422) so i found a solution. I should go to services-windows defender service and enable it, but when i attempt to apply my changes a message saying "access denied" pops out (i am the administrator). Is it a malware and what can i do? 

 

Thanks in advance!


Edited by Orange Blossom, 17 January 2016 - 11:40 AM.
Moved from Windows 10 to AII. ~ OB


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#2 Niweg

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Posted 17 January 2016 - 03:28 PM

 This certainly isn't normal.  I've been using Defender with Win 10 since the insider program began back 10/1/2014.  You could try scanning for corrupt files by opening an administrator command prompt and issuing this command: sfc /scannow.  If you think you have some kind of virus or malware, you could post in one of the security forums here.  They tend not to like discussions of that elsewhere.

`

 Good luck. 


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#3 quietman7

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Posted 17 January 2016 - 04:05 PM

What other security software are you using?

 

The inability to turn Windows Defender 8/10 on is typically the result of having a third-party anti-virus installed or failure to remove it properly (completely). Since Windows 8/10 Defender includes anti-virus protection, it is disabled by the installation of another anti-virus program. If a trial anti-virus (i.e. McAfee, Norton, etc) came preinstalled on your computer or you installed one, it most likely turned Windows 8 Defender off (disabled) to avoid conflicts. Windows Defender will remain disabled until that anti-virus software has been completely uninstalled. In some cases, you may need to download and run the anti-virus vendor's clean up tool to remove any remaining remnants.

After removal of the third party anti-virus, Windows 8/10 Defender needs to be activated if you choose to use it. When uninstalling the third-party anti-virus Defender should automatically turn on. In some cases you may receive a message indicating your system has no protection...click here to turn on Windows Defender. If not, and Defender remains disabled, you will need to manually turn it on.

 


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