After dragging folder in pictures do not open as thumbnails. just image numbers I have to open every one to find the picture I want ? , changing view does not help
Pictures showing no thumbnails could be a Windows OS bug or file systems error caused due to corruption in files or drives. However, Windows allows you to troubleshoot the problem.
You can check this article to understand better methods to fix such issues. You can also delete the thumbnail cache and rebuild the thumbnail cache database.