Answer-by-number:
- How did you install Windows 7 on the new HDD & what installation media did you use to install it?
- Is Internet Explorer 8 (IE8), IE9, IE10 or IE 11 installed?
- Yes, I know you don't use Internet Explorer - but it's part & parcel of your Operating System. If IE's not working properly and/or not fully-patched, Windows isn't either. Note: Support for IE10 & earlier ended on 12 January 2016.
- Is it a Dell computer that came with Vista preinstalled or did you use a Dell (OEM) disk to install Win7?
- Can you successfully upgrade to Firefox version 47.0.1 (or higher)?
>
>
> When I installed [KB3020369 manually] as just recommended by another person on MS community, the only change was that update said Never for the "most recent updates."
>
Maybe you should ask that person what to do?