My PC starts to download pictures, indicates the correct number of pictures in the camera and then the display on the camera blanks, and then the computer reports that no pictures exist. Windows 7 works OK, and taking the SD card and plugging it into my Epson WorkForce 840 works OK as well.
I have used Windows Vista, Windows 7, Windows 10. I have never used the Picture Import utility. I eject SD cards from the camera and copy and paste them manually where I want them to go 1st) to local drive preferred and 2nd to external hard drive.
As I do not work from cards. As soon as the copy routine is done, I eject the card.
I use Adobe Lightroom and when I am done exporting images out of Lightroom they get copied over to the external hard drive as well.
Did you use the Import option on Windows once it acknowledged the device? It ususally works.
Also you can pop out the memory card and use your card reader if your machine has one. If not, then turn off the camera and see if Windows can detect the memory card.
Make sure the device has its drivers installed.