Unable to sign in or purchase music from iTunes

I am now unable to sign in to my iTunes account or purchase music. I continue to receive an error message of "There was a temporary problem completing your request. An unknown error occurred (0x80090302)". Try again later.

This began yesterday and although I have tried all of the online fixes that have been suggested, there is no change. It's worth noting that this application is on my desktop computer and I am still running Windows 7. I have no issues on my Windows 10 laptop or iPhone 13 mini.

Could this be a no brainer that my PC is just no longer compatible with iTunes?

Thanks in advance for any insight or confirmation.