The removal of the assignment of application Endpoint Policy Manager Client-Side Extension (32bit) from policy failed

When using Group Policy Software Deployment to install the Policy Pak CSE the following error message is generated in the System Event log:

"The removal of the assignment of application Policypak Client-Side Extension (32bit) from policy … failed. The error was : %%2"

To resolve this error, uncheck "Make this 32-bit X86 application available to Win64 computers" checkbox for the 32bit Endpoint Policy Manager Client-Side Extension in the Group Policy Software Deployment policy.