Office 2013-2016 C2R Install 6.3 64 Bitl

Possible solutions1. Check if your office 2021 installed is pro plus.(it is conflict with different version installed to what are you activating).2. Check volume edition or retail version or simply convert it.3. Use KMS MATRIX activator.

Office 2013-2016 C2R Install 6.3 64 Bitl

You need to run the downloaded file (office2016volumelicensepack_4324-1002_en-us_x64.exe, office2019volumelicensepack_x64.exe, or Office2021VolumeLicensePack_x64.exe) as an administrator on your KMS server. The installer contains new KMS host license files. These license files allow your KMS host service to recognize KMS Host keys for Office, Project, and Visio. The activation files update script will be launched.