修复Windows10照片查看器

习惯于windows自带的图片查看器，但有时这个功能不能用了。
只需要将下在一段代码在记事本中，保存为.reg文件，然后双击该文件合并注册表即可。

Windows Registry Editor Version 5.00

 ; Change Extension's File Type

 [HKEY_CURRENT_USER\Software\Classes\.jpg]

 @="PhotoViewer.FileAssoc.Tiff"

 ; Change Extension's File Type

 [HKEY_CURRENT_USER\Software\Classes\.jpeg]

 @="PhotoViewer.FileAssoc.Tiff"

 ; Change Extension's File Type

 [HKEY_CURRENT_USER\Software\Classes\.gif]

 @="PhotoViewer.FileAssoc.Tiff"

 ; Change Extension's File Type

 [HKEY_CURRENT_USER\Software\Classes\.png]

 @="PhotoViewer.FileAssoc.Tiff"

 ; Change Extension's File Type

 [HKEY_CURRENT_USER\Software\Classes\.bmp]

 @="PhotoViewer.FileAssoc.Tiff"

 ; Change Extension's File Type

 [HKEY_CURRENT_USER\Software\Classes\.tiff]

 @="PhotoViewer.FileAssoc.Tiff"

 ; Change Extension's File Type

 [HKEY_CURRENT_USER\Software\Classes\.ico]

 @="PhotoViewer.FileAssoc.Tiff"