从Windows 10开始，默认只能通过“照片”来查看图片了，非常不方便！通过将下列文本保存在.reg文件后导入，即可找回Windows XP时代的“照片查看器”。
Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Photo Viewer\Capabilities\FileAssociations]
".jpg"="PhotoViewer.FileAssoc.Tiff"
".jpeg"="PhotoViewer.FileAssoc.Tiff"
".bmp"="PhotoViewer.FileAssoc.Tiff"
".png"="PhotoViewer.FileAssoc.Tiff"
".ico"="PhotoViewer.FileAssoc.Tiff"
".jpe"="PhotoViewer.FileAssoc.Tiff"
".dib"="PhotoViewer.FileAssoc.Tiff"
".jfif"="PhotoViewer.FileAssoc.Tiff"
".wdp"="PhotoViewer.FileAssoc.Tiff"