默认打开图片是画图，更改为照片查看器
新建reg文件，填入下面内容
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Photo Viewer\Capabilities\FileAssociations]
".tif"="PhotoViewer.FileAssoc.Tiff"
".tiff"="PhotoViewer.FileAssoc.Tiff"
".png"="PhotoViewer.FileAssoc.Tiff"
".jpg"="PhotoViewer.FileAssoc.Tiff"
".jpeg"="PhotoViewer.FileAssoc.Tiff"
".bmp"="PhotoViewer.FileAssoc.Tiff"
保存，双击打开
再更改打开方式即可
