Cannot validate digital signature - Reader 11.0.10 on Windows 8.1

We cannot validate digital signatures in Adobe Reader 11.0.10 on a Windows 8.1 PC, but the same signatures/documents can be validated in the same version of Reader on Windows 7 Pro. Is there a known issue with signature validation in Reader XI and Windows 8/8.1?

Hi CTMutual_CMHC,
This might not have happened for Windows 8.
Could you please try validating signatures in some different PDF and check.
You can also refer the following link for the same:
https://helpx.adobe.com/acrobat/using/validating-digital-signatures.html#validate_a_digita l_signature
If the issue persists, then try installing the latest version of Reader from here:
Adobe Acrobat Reader DC Install for all versions
Let me know how it goes.
Regards,
Anubha

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Cannot validate digital signature - Reader 11.0.10 on Windows 8.1

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