A client could not print an image from the Windows 10 Photos app. It displays error about the printer needing configuration with error code 8007007e.

1. Browse to c:\Windows\System32\spool\drivers\x64
2. Search here (and subfolders) for printconfig.dll (you may see several)
3. Copy any one of these to c:\Windows\System32\spool\drivers\x64\3

No reboot is required. The next time we opened the Photos app, all was well.