I've run across the following issue with PDFCreator 2.4.1 (on Windows 10 Ent. and Windows 7 Ent.) and it only happens on the first run.
When converting any document to a PDF everything works fine, except that the conversion prompt that accelerates from 0% to 100% doesn't close. It only happens on the first conversion.
I'm installing with the following command line: "PDFCreator-2_4_1-Setup.exe /LOADINF="PDFCreator.inf" /VERYSILENT /NORESTART"
The inf is as below: