Maybe I'm not following your question but... Extended End Date for Windows 8.1 is January 10, 2023

https://docs.microsoft.com/en-us/lifecycle/products/windows-81

Are you wanting to continue to use 8.1 without ongoing security patches from Microsoft?

Even if Intuit permits it? And you're going to do this IN JANUARY?  👀

https://proconnect.intuit.com/support/en-us/help-article/product-system-requirements/lacerte-system-...

Presume the above Requirements will update as HRH @IntuitGabi deems fit. 😉