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SPAPI_E_DEVINFO_NOT_REGISTERED
SPAPI_E_DEVINFO_NOT_REGISTERED means that an API operation requiring a registered device information element was called for an item that exists only in the in-memory device information set. Some installation and property operations require the corresponding device node to be registered first.
What to check
- Review the call sequence and identify whether the element was created but never registered.
- Use the documented API for registration before invoking operations that act on a system device instance.
- Do not confuse a member of an HDEVINFO set with a device that is present in the Plug and Play tree.
Microsoft: using device installation functions
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