If your goal is to use the classic Microsoft Photo Viewer on Windows 8.1 without installing new software, you don’t need to download anything. The program is already sitting dormant on your hard drive. You just need to activate it via the Windows Registry. Step-by-Step Activation Press to open the Run dialog box. Type notepad and hit Enter .
While Windows 8.1 defaults to the full-screen "Photos" app, you can force the system to use the classic, lightweight desktop viewer by updating your file associations. How to set it as default: microsoft photo viewer download for windows 81 portable
Do you need this to work across via a USB drive? Are you comfortable using the Windows Registry script ? If your goal is to use the classic
How to Safely Get a Portable Microsoft Photo Viewer for Windows 8.1 Step-by-Step Activation Press to open the Run dialog box
Save the file as PortableViewer.bat (Select in the save window). Drop this .bat file onto your USB flash drive.