A briefer summary..

Microsoft are so desperate to 'persuade' everyone to move to Win 10...

The downloadable Win 8.1 ISO provided on their site
is so out of date it is unusable by most consumers.
The update function is broken, leaving a fresh install open to security risks.
They provide no realistic help for average domestic PC users.

It requires expert knowledge at pro technician level,
using 'unofficial' 3rd party system admin tools,
to fix the problem microsoft ignores...

.. bastards...