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Windows 7: Windows Defender won't start

17 Jan 2012   #1

Windows 7 Home Premium x64 SP1
 
 
Windows Defender won't start

Hello guys i have another problem ugh ^_^ when i open windows defender and click start now it wont start the program i get the error saying : The specified service does not exist as an installed service. (Error Code: 0x80070424)
Also when i noticed something that in my services list my windows defender service is missing from the list i can't find it i need help please thanks
Here is screen shot of my error

I already did sfc /scannow command and nothing fixed
I Also did full scan with Malwarebytes' Anti-Malware and no viruses found
Please help me out Thanks and have a nice day


My System SpecsSystem Spec
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17 Jan 2012   #2
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

If you run MSE as AV program, that includes Defender. In fact it is the same process - MsMpEng.exe
My System SpecsSystem Spec
17 Jan 2012   #3

Windows 7 Home Premium x64 SP1
 
 

im sorry i dont understand what your trying to tell me..
My System SpecsSystem Spec
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17 Jan 2012   #4
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

What is your Antivirus Program - is it MSE (Microsoft Security Essentials)?
My System SpecsSystem Spec
17 Jan 2012   #5

Windows 7 Home Premium x64 SP1
 
 

no its Kaspersky Internet Security 2012
My System SpecsSystem Spec
17 Jan 2012   #6
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

OK, I am not a Kaspersky expert. But I suspect that Kaspersky has shut it off because they have a similar function. But I am not 100% certain of this. Wait until some Kaspersky expert comes on.
My System SpecsSystem Spec
17 Jan 2012   #7

Windows 7 Home Premium x64 SP1
 
 

you might be right should i give a try to unistall Kaspersky Internet Security 2012 and see what happends?
My System SpecsSystem Spec
17 Jan 2012   #8
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

I would not do that. Kaspersky is an excellent AV program and protects you better than Defender. Besides, if they have shut defender off, it may not automatically come on when you uninstall Kaspersky.
My System SpecsSystem Spec
17 Jan 2012   #9

Windows 7 Home Premium x64 SP1
 
 

so what are you suggesting me to do fix the problem?
My System SpecsSystem Spec
17 Jan 2012   #10
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

I don't think there is a problem. Defender and Kaspersky may be mutually exclusive. But wait until a Kaspersky expert can confirm that. If I am wrong, we can see what can be done - e.g. a Repair/Install.
My System SpecsSystem Spec
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 Windows Defender won't start




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