CA PAM agent install failed as windows couldn't verify the digital signature

Products

• CA Privileged Access Manager (PAM)

Issue/Introduction

PAM Admin tried installing PAM agent on their workstation and get's the got following error, when attempting to start our service:

The CAPAMAgentCallouts 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.

Environment

Release : 3.4.x

Component : PRIVILEGED ACCESS MANAGEMENT

Resolution

Re-download and install the CA PAM Access Agent -> most likely got corrupted during copying over to workstation where they were installing it.