My oldest computer is nearly 20 years old and it can run Windows 64-bit just fine. In terms of graphics systems, both Nvidia and AMD have both discontinued 32-bit support. In the way of operating systems, even Apple and most mainstream Linux distros have discontinued 32-bit support (or have a timeline to do so). Today, only Microsoft Windows seems to be holding out, but as we all know, Microsoft technically has been pushing out a new release every 6 months, while slowly (arguable, sometimes silently in the way of performance hits) pushing out higher system requirements for those releases. At one point does anyone suspect that Microsoft will end support or at the very least, stop developing a new release for 32-bit systems?