Thank you everyone who responded to my question. I installed version 5.5 without a hitch. I was prompted to remove the Corel files and the rest of the installation went just fine. Upon opening the program, I was prompted for the registration/product key. All is good so far! 
Thanks for the heads up on the Windows 10 update 1903. It is installing as we speak. 
I appreciate the support. 
Have a good day. 
Heather