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a0490003 - Attempt to access the on-access driver by unprivileged user (NT AUTHORITY\LOCAL SERVICE) was denied

Nok

We have about 100 of Computers (around 1/3 computer in my company) got this error in SEC since 5-May-2016.

The on-access is inactive now with all of this computers.... differs from policy / update to date =unknown

I have try update the SEC from 5.2.2  to version 5.4, however it's nothing changed.

On the client computer, I find that the Sophos Anti-Virus & Sophos Device Control Service service is stopped. If I try start it by manual, I cannot start it successfully too.

If I try to uninstall / reinstall the SAV in the client computer, there is a windows MSI error, the sophos autoupdate cannot be uninstall.

How can I fix this big issue ? Thanks!



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    I found a method to solve it.

    1) I get some hints from this post : c:\Program Files (x86)\Sophos\Sophos Anti-Virus are not complete. Then i copy the same files on working machine to affected machine and it's fixed.

    I follow this method, the service on the client pc is normal now, the SEC show normal status too.

    community.sophos.com/.../74105

    2) for the uninstall/reinstall issue, it related to this KB. There is a bug of MS KB3139923. after uninstall this patch on the clients pc, I can reinstall / uninstall the Sophos Autoupdate agian.

    www.sophos.com/.../62212.aspx

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  • 0

    I found a method to solve it.

    1) I get some hints from this post : c:\Program Files (x86)\Sophos\Sophos Anti-Virus are not complete. Then i copy the same files on working machine to affected machine and it's fixed.

    I follow this method, the service on the client pc is normal now, the SEC show normal status too.

    community.sophos.com/.../74105

    2) for the uninstall/reinstall issue, it related to this KB. There is a bug of MS KB3139923. after uninstall this patch on the clients pc, I can reinstall / uninstall the Sophos Autoupdate agian.

    www.sophos.com/.../62212.aspx

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