I have been investing dozens of hours into trying to get Epson Scan working properly on Win 10 since the 1803 update. My multi-function printer is an XP-410 and the printer and scanner work fine, but the Epson Scan software (until the 1803) offers all the functions that I want. However, today I decided to have another shot at correcting the various glitches that prevented the full use of Epson Scan. The main problems were that the folder for storing scans could only be changed by modifying the Registry (rather inconvenient) and the Preview window disappeared off-screen. I have two almost identical laptop PCs so by applying the same fixes to each, namely run in Administrator mode and XP compatibility seemed to fix all but the change-folder function and an occasional crash.
Today I uninstalled all the Epson software and reinstalled on the first PC from www.tech.epson.com.au (I'm in Australia) and noted that there is now a patch for 1803 dated July 2018 in the Win 10 64bit downloads. I have not looked for some time and I don't believe that I've ever found this particular website previously. Anyway, I installed the software I needed and got the Epson Scan working...so far. On tackling the second PC in a similar manner but using the recommended online install it failed to eliminate the issues. Uninstall again and reinstall by individual downloads, the change-folder problem was cured, but the preview window could not be seen. After comparing the Registries of both PCs, particularly: HKEY_CURRENT_USER|Software|EPSON|EPSON Scan|ES00E9|Environment
- a number of Data values were different or missing from the 2nd PC.
I edited the values of the 2nd PC to be the same as the 1st PC and everything seems to work ok on both...so far.
I'l do some intensive scanning over the next weeks to see what transpires.
The most significant difference seems to me to be a change from a 32 bit version to a 64 bit version in the uninstall/reinstall. Oh, and I changed the compatibility from XP to Win 8 (no 10 available), but retained the Run as Administrator.
I hope this helps somebody.
P.S. I'm on the 1909 Win 10 version.