Finding a direct is slightly different from modern apps because the classic viewer is already built into the system. In Windows 8.1, Microsoft introduced the "Photos" app as the new default, often hiding the familiar classic version. How to Access Microsoft Photo Viewer in Windows 8.1
If the registry edit doesn't work for you, you can try copying the Photo Viewer files from a Windows 7 machine. You'll need a Windows 7 machine or a virtual machine with Windows 7 installed. microsoft photo viewer download for windows 8.1
The option may not appear for .jpg or .png files. If it doesn’t, you must use Method 1 or Method 3. Finding a direct is slightly different from modern
For those comfortable with command lines, PowerShell can restore the file associations in one go. microsoft photo viewer download for windows 8.1