Problem opening JPEG, PNG etc

Couple of things to try:

  • Make sure no Compatibility Settings are turned on for dopus.exe. (If it thinks it's running on an older OS, it might not work properly with Microsoft Store apps like the Win11 Photos app.)

    See Windows Compatibility Settings / Wrong DPI / Installer misdetects OS for details on how to check that.

  • Assuming that's OK, comparing the file type settings between the two machines may reveal the difference.

    • Settings > File Types
    • File > Diagnostic (at the top left of the File Types dialog)
    • Enter JPEG or PNG as the extension.

    That will save a zip file to your desktop. If you do it on the machine with the problem and send it to us, we can take a look. (The same from the working machine might also be worth doing, if it's easy, but we can compare with our own Win11 machine as well, so that's less important.)