将以下代码用记事本另存为REG格式，双击导入即可。

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\.pcx]
@="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"

Windows 10 企业版LTSC 使用以下方法，将代码保存为bat格式用管理员权限运行。

@echo off&cd\&color 0a&cls 
echo 恢复Win10照片查看器 
reg add "HKLM\SOFTWARE\Microsoft\Windows Photo Viewer\Capabilities\FileAssociations" /v ".jpg" /t REG_SZ /d PhotoViewer.FileAssoc.Tiff /f 
reg add "HKLM\SOFTWARE\Microsoft\Windows Photo Viewer\Capabilities\FileAssociations" /v ".jpeg" /t REG_SZ /d PhotoViewer.FileAssoc.Tiff /f 
reg add "HKLM\SOFTWARE\Microsoft\Windows Photo Viewer\Capabilities\FileAssociations" /v ".bmp" /t REG_SZ /d PhotoViewer.FileAssoc.Tiff /f 
reg add "HKLM\SOFTWARE\Microsoft\Windows Photo Viewer\Capabilities\FileAssociations" /v ".png" /t REG_SZ /d PhotoViewer.FileAssoc.Tiff /f 
echo 请双击或右击图片，选择“照片查看器”即可 pause