| Previous | Next |
| ERROR_EXE_CANNOT_MODIFY_SIGNED_BINARY | ERROR_FILE_CHECKED_OUT |
ERROR_EXE_CANNOT_MODIFY_STRONG_SIGNED_BINARY
A strongly signed binary cannot be modified
ERROR_EXE_CANNOT_MODIFY_STRONG_SIGNED_BINARY is a Win32 result associated with servicing or patching a strongly protected executable., diagnosis should begin with the exact API, target object, and operation that produced it rather than with the message text alone.
What the result means
Windows refused to modify an executable protected by a strong signature. The practical meaning depends on the caller and on whether the affected object is local, remote, removable, policy-managed, or handled asynchronously. Diagnostics for it should retain its symbolic name, numeric value, and the operation name together.
What to check
- Determine which signing technology and policy protect the image.
- Use the vendor-supported servicing mechanism rather than a generic binary editor.
- Verify catalog, package, and component-store integrity when the file belongs to Windows.
- Capture the exact path, signer, package identity, and attempted modification.
Recommended handling
Replace the component only through its authorized build or servicing path. Taking ownership and editing the file may break trust validation, updates, rollback, or system integrity checks.
Developer notes
Code handling this result should capture the failing API, resolved path or device identity, requested access, process identity, and the first observed error. After a call that reports it, read GetLastError() immediately because later cleanup or logging can overwrite the value. Retry it only when the specific condition is documented as transient, using a bounded delay and cancellation support.
References
- Microsoft: System error codes relevant to ERROR_EXE_CANNOT_MODIFY_STRONG_SIGNED_BINARY
- Microsoft: File management context for ERROR_EXE_CANNOT_MODIFY_STRONG_SIGNED_BINARY
Looking for a different code? Search another status or error code.