新建文字文件後，複製以下內容：
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Photo Viewer\Capabilities\FileAssociations]
".tif"="PhotoViewer.FileAssoc.Tiff"
".tiff"="PhotoViewer.FileAssoc.Tiff"
".jpg"="PhotoViewer.FileAssoc.Tiff"
".bmp"="PhotoViewer.FileAssoc.Tiff"
".jpeg"="PhotoViewer.FileAssoc.Tiff"
".wepb"="PhotoViewer.FileAssoc.Tiff"
".gif"="PhotoViewer.FileAssoc.Tiff"
".ico"="PhotoViewer.FileAssoc.Tiff"
".png"="PhotoViewer.FileAssoc.Tiff"
複製完畢後，重新命名為任意以 .reg為字尾名的檔案，雙擊執行並新增就好了，其實原理就是在登錄檔HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Photo Viewer\Capabilities\FileAssociations
下新增字元型的資料並設定值。