Hi @Rob Kane ,
Maybe you can also try to check the status of Office license in PC, please follow these steps:
Search CMD, right-click the Command Prompt and run as administrator. Then copy and paste the command, click Enter at last:
cscript.exe "%ProgramFiles%\Microsoft Office\Office16\ospp.vbs" /dstatus
If you are running 32-bit Office on a 64-bit operating system:
cscript.exe "%ProgramFiles(x86)%\Microsoft Office\Office16\ospp.vbs" /dstatus
If you can find the Office 365 product key in list, try to remove it by typing the following command with the Last 5 characters of installed product key (I replace it with XXXXX, but what you type in is what you see on your computer) in this interface:
cscript.exe "%ProgramFiles%\Microsoft Office\Office16\ospp.vbs" /unpkey:XXXXX
If the 32bit version of Office installed on a 64bit operation, run the following command:
cscript.exe "%ProgramFiles(x86)%\Microsoft Office\Office16\ospp.vbs" /unpkey:XXXXX
You can also try this method and check if you have the previous Office product key exsits in list, and try to uninstall the key.
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