I am very sorry if someone in Adobe Customer Support sent you here for assistance. These communities cannot help you with any activation or software download issues. The agent should have passed you along to a supervisor who did know how to assist you.
That having been said, if you have a “new” laptop and it is running anything beyond Windows XP (which I am sure it is) and really ancient versions of Microsoft Office applications, even if you can coerce an installer of Acrobat 8.1 to actually install software under any reasonably modern version of Windows, it will be somewhat crippled in terms of functionality. To fully and properly install and run Acrobat under current versions of Windows, you really need either Acrobat DC (subscription) or Acrobat 2017 (perpetual license, but limited updates).
- Dov