lsass.exe Help

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kupo1212

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Joined
Jan 4, 2013
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Hello, I am experiencing some problems when turning Windows Features on/off. After doing a sfc /scannow in an elevated command prompt, Windows found integrity violations in lsass.exe. It seems that I have a corrupted lsass.exe. SFC cannot repair it as the one it is using to replace is also corrupted. I found a Windows tutorial in how to replace a corrupted file. Note: I am using Windows 7 x64 Home Premium. I tried in safe mode but still failed.I want to try a repair install but this is a laptop, and no Windows installation disc are given, only recovery disc which I can't find anymore. (This is already 3 yrs old).
Attached is the sfc logs.
I found this tutorial in the Windows website.
Is it safe to do it in lsass.exe?
Follow these steps:

At an elevated command prompt, copy and then paste (or type) the following command, and then press ENTER:
takeown /f Path_And_File_Name
For example, type takeown /f E:\windows\system32\jscript.dll.
Copy and paste (or type) the following command, and then press ENTER to grant administrators full access to the file:
icacls Path_And_File_Name /GRANT ADMINISTRATORS:F
For example, type icacls E:\windows\system32\jscript.dll /grant administrators:F.
Copy and paste (or type the following command to replace the file with a known good copy of the file:
Copy Path_And_File_Name_Of_Source_File Path_And_File_Name_Of_Destination
For example, type copy E:\temp\jscript.dll E:\windows\system32\jscript.dll.
 

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dvk01

Derek
Retired Moderator Retired Malware Specialist
Joined
Dec 14, 2002
Messages
56,452
often it is malware injecting into the lsass.exe file that causes those messages

follow advice here and post the logs those programs make
 
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