If you own a legitimate Office 2013 product key but have lost the installation media, you can reinstall the suite by signing into your Microsoft Account at account.microsoft.com/services —no activator required.
Microsoft provides corporate and institutional clients with a system called Key Management Service (KMS). In a legitimate enterprise environment: KMSmicro V3.10 Microsoft Office 2013 Activator.rar
This is the most critical section of this guide. Using unofficial activation tools like KMSmicro v3.10 comes with significant risks that go far beyond mere legal technicalities. If you own a legitimate Office 2013 product
KMSmicro V3.10 is a third-party hack tool that copies this enterprise environment on a single, isolated computer. KMSmicro works entirely offline
Unlike other activators that require an internet connection, KMSmicro works entirely offline, making it useful for machines without internet access.