'This product is already installed on another device' message issue

It's Microsoft office fault and they have accepted with me in a call. but they are unable to resolve shame of them being such a big entreprise unable to clear small glitches like these.. I followed up with support team for almost 8 hrs no use at all. All did the same.checks and saying you have all valid proofs of buying office but we are unable to resolve this issue

Thank you for the clarification guys! :)

The issue has been escalated & hopefully it'll be fixed soon.

Hi,

I am facing the exact same issue you had. I tried contacting Microsoft support via (https://widget.rave.office.net/)  but they asked me to contact the HP store where I got my laptop instead.

So I did. and they asked me to contact Microsoft! I've just been going in circles.

Was your issue fixed by remote screen sharing on this website https://widget.rave.office.net/ ?

Which version of Office is this? Phone activation may be required for older versions; see https://support.microsoft.com/en-us/office/-telephone-activation-is-no-longer-supported-for-your-product-error-when-activating-office-9b016cd2-0811-4cb3-b896-5a6a13177713.

For more troubleshooting, see https://support.microsoft.com/en-us/office/unlicensed-product-and-activation-errors-in-office-0d23d3c0-c19c-4b2f-9845-5344fedc4380.

Hi Rich,

Contacting technical support team, will solve your problem.