VERIFIED SOLUTION i
When installing an upgrade of Confirm via the MSI installer. if a previous version of Confirm is on the machine the user may run into an error stating that there is an Error applying transforms.
Verify that the specified transform paths are valid.
ResolutionUPDATED: August 22, 2017
If you uninstall Confirm from the machine, the upgrade will install correctly.
When using the Confirm MSI installer, administrators may need to remove the regkey from the machines Registry.
This regkey blocks the MSI installer from completing the install process if a previous version of Confirm remains on the machine.
Any changes to this will need to be raised as an enhancement request.