Detected Office 2019 C2r Retail Could Not Be Converted To Volume 【Genuine】

Office 2019 C2R Retail to Volume Conversion Fails

To set up a KMS host:

Retail and Volume editions of Office 2019 use distinct C2R binary streams. The underlying licensing DLLs ( ospp.dll , sppc.dll ) and activation triggers differ. Retail expects a Microsoft account or digital license, while Volume requires a KMS host or MAK key. Office 2019 C2R Retail to Volume Conversion Fails