如何删除C＃中的registry值

我可以使用Microsoft.Win32.Registry类获取/设置registry值。 例如，

Microsoft.Win32.Registry.SetValue( @"HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run", "MyApp", Application.ExecutablePath); 

但是我不能删除任何值。 如何删除registry值？

Answer 1

要删除问题中设置的值：

 string keyName = @"Software\Microsoft\Windows\CurrentVersion\Run"; using (RegistryKey key = Registry.CurrentUser.OpenSubKey(keyName, true)) { if (key == null) { // Key doesn't exist. Do whatever you want to handle // this case } else { key.DeleteValue("MyApp"); } } 

查看Registry.CurrentUser ， RegistryKey.OpenSubKey和RegistryKey.DeleteValue的文档以获取更多信息。

Answer 2

要删除树中的所有子键/值（〜recursion），下面是我使用的扩展方法：

 public static void DeleteSubKeyTree(this RegistryKey key, string subkey, bool throwOnMissingSubKey) { if (!throwOnMissingSubKey && key.OpenSubKey(subkey) == null) { return; } key.DeleteSubKeyTree(subkey); } 

用法：

 string keyName = @"Software\Microsoft\Windows\CurrentVersion\Run"; using (RegistryKey key = Registry.CurrentUser.OpenSubKey(keyName, true)) { key.DeleteSubKeyTree("MyApp",false); } 

Answer 3

 RegistryKey registrykeyHKLM = Registry.LocalMachine; string keyPath = @"Software\Microsoft\Windows\CurrentVersion\Run\MyApp"; registrykeyHKLM.DeleteValue(keyPath); registrykeyHKLM.Close(); 

Answer 4

RegistryKey.DeleteValue