". This typically happens when there is a mismatch between the installed Office version (e.g., Retail) and the activation method being used (e.g., KMS/Volume licensing). Common Solutions Remove Conflicting Licenses
Uninstall the old/invalid key (using the last 5 characters shown in dstatus): cscript ospp.vbs /unpkey:XXXXX error code 0xc004f017 office activation
For a MAK key: