| Previous | Next |
| ERROR_UNKNOWN_PRODUCT | ERROR_UNKNOWN_COMPONENT |
ERROR_UNKNOWN_FEATURE
ERROR_UNKNOWN_FEATURE means that Windows Installer could not find the requested feature identifier for the selected product. A feature is an MSI authoring identifier, not necessarily the product name shown in Apps and Features.
Query the product’s feature table or supported installer APIs using the exact installed ProductCode. Correct the feature identifier at the caller rather than substituting a display name that is not an MSI feature key.
What to check
- Verify the ProductCode and the exact feature identifier supplied by the caller.
- Check that the operation is being performed against the intended installed product and user context.
- For package authors, inspect the Feature table rather than guessing an identifier from visible UI text.
Microsoft: Windows Installer error codes · Microsoft: Installer function reference
Looking for a different code? Search another status or error code.