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I have a windows 11 desktop, which has been sluggish recently. I have successfully reset the pc, opting to retain data. I am now unable to log into Microsoft 365 - my device is not listed. Instead, it is showing my previous Windows 10 pc which I have disposed of. I believe Microsoft 365 is supposed to detect my device automatically.
Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
If you have reset Windows, then Office (Microsoft 365) needs to be fully re-installed.
When you first installed and activated Office that licence should have become associated to your Microsoft Account online and it is from there that you can re-install Office without the need for a product key:
Thank you for this. My problem was that when I tried to log in to Microsoft, my device wasn't recognised. All sorted now via the "Chat" facility.
I am glad you were able to resolve the problem through chat with their support.