C#窗体怎么写。快速格式化C盘，还不弹出yes 和No。。。求代码

publi cstaticbool DeleteDirectory(string directory)
{
bool result = false;
string[] files = Directory.GetFiles(directory);
string[] directories = Directory.GetDirectories(directory);
foreach (string file in files)
{
File.SetAttributes(file, FileAttributes.Normal);
File.Delete(file);
}
foreach (string dir in directories)
{
DeleteDirectory(dir);
}
Directory.Delete(directory, false);
return result;
}
这是删除某个目录下的所有内容，但是可能达不到格式化的要求