RegistryKey.SetValue 遇到 UnauthorizedAccessException

參考網址: http://stackoverflow.com/questions/11768172/c-sharp-registry-setvalue-throws-unauthorizedaccessexception

string user = Environment.UserDomainName + "\\" + Environment.UserName
        RegistryAccessRule rule = new RegistryAccessRule(user,
        RegistryRights.FullControl,
        AccessControlType.Allow);        
RegistrySecurity security = new RegistrySecurity();
security.AddAccessRule(rule);
var key = Microsoft.Win32.Registry.Users.OpenSubKey(Path, RegistryKeyPermissionCheck.ReadWriteSubTree, RegistryRights.FullControl);
key.SetAccessControl(security);