<PackageReference Include="Microsoft.Win32.Registry" Version="4.6.0-preview4.19212.13" />

RegistryHive

public enum RegistryHive
Represents the possible values for a top-level node on a foreign machine.
namespace Microsoft.Win32 { public enum RegistryHive { ClassesRoot = int.MinValue, CurrentConfig = -2147483643, CurrentUser = -2147483647, LocalMachine = -2147483646, PerformanceData = -2147483644, Users = -2147483645 } }