注册加入如下内容即可.Windows Registry Editor Version 5.00
[HKEY_CLASSES_ROOT\.bmp]
@="Paint.Picture"
"PerceivedType"="image"
"Content Type"="image/bmp"
[HKEY_CLASSES_ROOT\.bmp\OpenWithList]
[HKEY_CLASSES_ROOT\.bmp\OpenWithList\MSPaint.exe]
@=""
[HKEY_CLASSES_ROOT\.bmp\OpenWithProgids]
"Paint.Picture"=hex(0):
[HKEY_CLASSES_ROOT\.bmp\PersistentHandler]
@="{098f2470-bae0-11cd-b579-08002b30bfeb}"
[HKEY_CLASSES_ROOT\.bmp\ShellNew]
"NullFile"=""