When I click on a photo, it brings up a new incident of Photo veiwer. How can I set Photo viewer to open new picture in the same incident?
Don't use Windows Explorer to browse your pictures, and then double-click to "launch" your default image viewer program. That will create unique separate instances for each image you "open" this way. That's the design and intent, because of how you're using Explorer as your browser.
I would open Photo Viewer first, as the "browser".
Then use the File -> Open dialog in Photo Viewer to navigate to where your photos are stored, and open each image, in the same single window/instance of Photo Viewer. I'm actually assuming that capability exists, because to be honest I myself do NOT use Photo Viewer or Windows Explorer for image viewing/browsing.
I might suggest that there are numerous "better" products than Photo Viewer, for use as both (a) standalone image browser, and (b) default image viewer launched from Explorer.
For example, I myself use an old "legacy" version of ACDSee v4.0 (or v5.0) as my image viewing program. Been using it for maybe 15 years now. Love it (although the current product v12.0 or 2.5 Pro or something like that, is super-bloated, very expensive, and "worthless" in my opinion).
Many people vouch for
free IrfanView, so you might try that.
Just about ANYTHING is better than Photo Viewer.
