I had a similar problem (software freezing/crashing) with my Epson79E717 (ET-4550 Series) Printer and the Windows 10 1803 update.
After much scratching of my head and pulling out of hair, I discovered that running "Epson Scan" as "Adminstrator" fixed the issue. I doubt this'll work for everyone but it worked for me. I have a newer Epson Printer and that may have given me an advantage...
Froobs