Hi @Helen Ralston
I suggest you search "CMD", right-click the "Command Prompt" and run as administrator. Then copy and paste the command below in it, 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
You may share us with the screenshot with the command results.
Check whether there is Office 2021, if yes, please remove it by typing the following command with its 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
Any updates, welcome to post back.
If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.