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Sophos Install Fails to install, must uninstall built in antivirus in windows 10

Robert Gonzales

I get a sophos failed to install endpoint detection client on a New Windows 10 Lenovo Laptop. I have sent my log files to Sophos but their solution is to call microsoft. The reason being is the log file indicate the install failure is the windows security client, which is inherent in the windows 10 software. I tried to turn the service off but the sophos software will not install. FYI I have 30 installations with the same setup and the software installed with the built in security client on. For some reason this install fails. I believe something has change in the sophos install client. Has anyone encountered this issue? 

Question How do I manually install sophos client? or how to I turn off / uninstall the inherent antivirus client for every install for now on? 



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    I Just talked to a college of mine, they suggested this solution.

    This problem occurs due to a new feature introduced in Windows 10 new versions. Now Windows 10 Security Center (WSC) requires all 3rd party antivirus programs and security suites to run as a protected process to be able to register with Windows. If a security program is unable to run as protected process, it’ll not appear in Windows Security app and Windows 10 will not recognize and register the program.

    Third party vendor must register with microsoft to allow install.

    Since Windows doesn’t register the new security program, Windows Defender keeps enabled and running along with the new installed antivirus or security suite.

    so every install for now on you must 

    Fortunately Windows 10 comes with a built-in solution to disable this requirement. You can turn off protected process enforcement for 3rd party antivirus programs and security suites to force Windows 10 to recognize and register them successfully.

    Although most of the popular antivirus programs and security suites have implemented this feature and now these programs already run in protected process but there are still a few security programs which do not come with this functionality. If you still want to use them, following steps will help you in disabling this requirement and register your 3rd party antivirus program with Windows 10 security center (WSC) so that Windows disables Windows Defender application and you have a single security program running in your PC:

    1. Press WIN+R keys together to launch RUN dialog box. Now type regedit in RUN and press Enter. It’ll open Registry Editor.

    2. Now go to following key:

    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center\Feature

    If you can’t find Feature key under Security Center key, you’ll need to create it manually by right-clicking on Security Center key and select New -> Key option.

    3. Select Feature key and in right-side pane, right-click and select New -> DWORD option. Set its name as DisableAvCheck and change its value to 1

    That’s it. Restart your computer and Windows 10 will successfully recognize your 3rd party antivirus program or security suite. Windows Security Center (WSC) will now register your security program and will disable Windows Defender without any problem

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  • 0

    I Just talked to a college of mine, they suggested this solution.

    This problem occurs due to a new feature introduced in Windows 10 new versions. Now Windows 10 Security Center (WSC) requires all 3rd party antivirus programs and security suites to run as a protected process to be able to register with Windows. If a security program is unable to run as protected process, it’ll not appear in Windows Security app and Windows 10 will not recognize and register the program.

    Third party vendor must register with microsoft to allow install.

    Since Windows doesn’t register the new security program, Windows Defender keeps enabled and running along with the new installed antivirus or security suite.

    so every install for now on you must 

    Fortunately Windows 10 comes with a built-in solution to disable this requirement. You can turn off protected process enforcement for 3rd party antivirus programs and security suites to force Windows 10 to recognize and register them successfully.

    Although most of the popular antivirus programs and security suites have implemented this feature and now these programs already run in protected process but there are still a few security programs which do not come with this functionality. If you still want to use them, following steps will help you in disabling this requirement and register your 3rd party antivirus program with Windows 10 security center (WSC) so that Windows disables Windows Defender application and you have a single security program running in your PC:

    1. Press WIN+R keys together to launch RUN dialog box. Now type regedit in RUN and press Enter. It’ll open Registry Editor.

    2. Now go to following key:

    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center\Feature

    If you can’t find Feature key under Security Center key, you’ll need to create it manually by right-clicking on Security Center key and select New -> Key option.

    3. Select Feature key and in right-side pane, right-click and select New -> DWORD option. Set its name as DisableAvCheck and change its value to 1

    That’s it. Restart your computer and Windows 10 will successfully recognize your 3rd party antivirus program or security suite. Windows Security Center (WSC) will now register your security program and will disable Windows Defender without any problem

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