Ideally? No. Inevitably? Probably. An operating system is software. Most software eventually stops being updated. Microsoft has historically done a pretty rea

Ideally? No. Inevitably? Probably. An operating system is software. Most software eventually stops being updated. Microsoft has historically done a pretty reasonable job at delivering security patches to old versions of Windows but that eventually ends. Apple tends to EOL their OS updates relatively sooner but they will still sign security patches for older versions at times. Your dad's computer may continue to be technically operable but will inevitably become functionally obsolete. It's unfortunate but it happens. Automobiles that required leaded gas to run right might be a good analog here: you could/can keep them running, but at what cost. Leaded gas was a known health danger so the benefits in that regard were clear, but also look at the advances that have been made in internal combustion engines since leaded gasoline was phased out. Likewise, an old computer (namely one that is connected to the internet) becomes a risk and Microsoft does not have the impetus to continue supporting it. And this is the point when the suggestion to install a friendly version of Linux is made. But frankly I'm not sure I'd even go to that trouble before reviewing what your dad's needs actually are and considering other devices that may actually be a better solution for the time and money.