regedit
\HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced
DWORD(32值)
ShowSecondsInSystemClock
1


网图jpg
计算机\HKEY_CLASSES_ROOT\MIME\Database\Content Type\image/jpeg

新建文件
计算机\HKEY_CLASSES_ROOT\.bat\ShellNew
REG_SZ
NullFile