I'm on the same path to keep Win7 forever. Do have a problem on my laptop, which is also Win7. When I try to launch the curve generator for the Quad9900 print, I get a memory read error. But all works fine when I'm using the Quad3880. I'm thinking the issue must be with the installed Epson driver for the 9900. Somehow the driver has been corrupted. Anyway I'll chase it down.
Again thanks for the info on Win10.
Cheers,
John