In the COM subsystem, an key specifies a 32-bit (or 64-bit, depending on context) in-process server – typically a DLL – that COM should load when a client requests a specific CLSID.
It creates an empty "Default" value within this key. This prevents Windows from loading the new "immersive" menu components, causing it to fall back to the classic code path. ASCOMP Software How to Use It In the COM subsystem, an key specifies a
Avoid using this as a general hardening measure without full testing and rollback planning. In the COM subsystem
on your system: