The HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node registry entry indicates that you’re running a 64-bit version of Windows. The OS uses this key to present a separate view of HKEY_LOCAL_MACHINE\SOFTWARE for 32-bit applications that run on a 64-bit version of Windows. When a 32-bit application queries a value under the HKEY_LOCAL_MACHINE\SOFTWARE\\[subkey]a, the application reads from the HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\[subkey].

The interesting thing is, there’s also a Wow6432Node under HKEY_LOCAL_MACHINE\SOFTWARE\Classes, which is a Classes branch of HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node`. If you change one, then another is also changed. They should be the same thing mapped to different locations.