When deploying the MSI file through Group Policy, you may sometimes encounter a PC where the installation has failed. EIOBoard is not present in Add/Remove Programs, and re-deploying does not work. Check for the presence of the following registry key:
If “Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Savance\InstallGPO\Started=1” is present, then delete it. Now you can try redeploying using Group Policy once again.