In some cases, antivirus software can interfere with the operation of our software. Try disabling it. You may need to configure your AV software to whitelist the program exe files in order to correct the problem while still using your AV software.
The files to whitelist are:
FinePrint: fpdisp*.exe
pdfFactory/Pro: fppdis*.exe
Some antivirus software allows named-pipe whitelisting which can also be used.