No provision of this Guaranty may be waived, amended, supplemented or modified, except by a written instrument executed by the Administrative Agent and the Guarantor (with the consent of the Lenders or the Required Lenders if required under the Credit Agreement). No failure by Administrative Agent to exercise, and no delay in exercising, any right, remedy or power hereunder shall operate as a waiver thereof; nor shall any single or partial exercise of any right, remedy or power hereunder preclude any other or further exercise thereof or the exercise of any other right, power or remedy. The remedies herein provided are cumulative and not exclusive of any remedies provided by law or in equity. The unenforceability or invalidity of any provision of this Guaranty shall not affect the enforceability or validity of any other provision herein. Unless otherwise agreed by the Administrative Agent and the Guarantor in writing, this Guaranty is not intended to supersede or otherwise affect any other guaranty now or hereafter given by the Guarantor for the benefit of the Secured Parties or any term or provision thereof.