WBEM_E_CANNOT_BE_KEY

Illegal attempt to specify a key qualifier on a property that cannot be a key. The keys are specified in the class definition for an object and cannot be altered on a per-instance basis.

Matched as: the code as given (hex)

HRESULT breakdown: code: 4127, customer: False, facility: 4, severity: failure (bit 31 set), ntstatus_wrapped: False

Source: WMI Error Constants · CC BY 4.0 · wording unchanged, formatting adapted for this site · retrieved 2026-10-24