If a previous license is conflicting (e.g., leftover trial keys), remove the specific license key.
Use cscript ospp.vbs /dstatus to see if your Office is currently licensed or which key is being used. aktivasi office 365 cmd
If you previously had a key installed, use wmic path softwarelicensingservice get OA3xOriginalProductKey to try and retrieve it from your system's firmware. If a previous license is conflicting (e