The error occurs when automated scripts or manual commands fail to switch the licensing channel from a standard retail installation to a Volume License (VL) model, such as KMS or MAK . This is typically due to corrupted remnants of previous Office versions, incorrect file permissions, or the use of incompatible Click-to-Run (C2R) builds. Common Root Causes
The error message typically occurs when using third-party activation or conversion scripts like KMS_VL_ALL or C2R-R2V-AIO . This happens because the script fails to swap the retail license certificates with the volume license ones required for KMS or MAK activation. Recommended Solutions KMS_VL_ALL/Activate.cmd at master - GitHub Detected Office 2019 C2R Retail Could Not Be
to install the Volume version directly using the Office Deployment Tool? KMS Activation Script for Windows/Office | PDF - Scribd The Solution: Use a different, more updated activation
Alex’s blood ran cold. “So I have to reimage every failed machine?” to install the Volume version directly using the