I downloaded a fresh copy of SW 2018 over my copy of 2017, which was already on my computer. I put in the serial number, and things seemed to run fine the first time around.

Subsequent attempts to open it results in it saying that my code expired (which I don't believe is true), or throws the Wizard 72 error at me. I did a repair installation, which did not fix it.

It then got even worse, when I tried to do a reinstall of the whole thing. I attempted to uninstall SW, but it tossed the Wizard 72 error at me when I opened up the installation program to uninstall SW. I was then prevented from continuing due to the error. So basically, I'm stuck with a broken copy of SW 2018 that I cannot uninstall for some reason. How should I proceed?