A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data
Please give a screenshot to tell the version of Office.
Control Panel\Programs\Programs and Features
It would be better to have a screenshot of the detailed error message.
> I signed up for Microsoft office
<< Could you please tell me how did you sign up for Office?
If you use Microsoft 365, Office 2019, retail version of Office 2016(like Office Professional 2016), or retail version of Office 2013(like Office Professional 2013), generally, we need to redeem a new purchase firstly with product key.
After finishing the redemption process, you could use your Microsoft account to sign in to account.microsoft.com and install your Office product.
According to your description, “Office prompting me for a product key“ may also be helpful for you.
If you have any updates, please post back.
Regards,
Erin
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