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Installation Error Message

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Dear Support Team,
 
We are unable to install emsisoft Enterprise Security Software trial license into windows 7 64bit Operating System.
 
Event Log Show the below Error Message
 
The eppwfp service failed to start due to the following error:
Windows cannot verify the digital signature for this file. A recent hardware or software change might have installed a file that is signed incorrectly or damaged, or that might be malicious software from an unknown source.
 
 
Regards
 
Tauseef

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We digitally sign our software using SHA-256 certificates (it is no longer possible to obtain SHA-1 certificates), and Windows 7 didn't originally have support for the SHA-2 family of hashing algorithms (which includes SHA-256). You need to make sure that Windows is up to date. Please see the following link for more information about updates that include SHA-2 support:
https://support.microsoft.com/en-us/help/4474419/sha-2-code-signing-support-update

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