win10如何找回自带的照片查看器

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"

将上述用记事本保存为reg格式。运行导入注册表。