Nothing like 'cherry picking' the statistics.
"Steam hardware statistics are made up from information sent in voluntarily by users. They do not represent the whole ecosystem, only a niche of it, which upgrades its software and hardware frequently."
Would have thought this was obvious and certainly not an applicable statistic to use to illustrate the number of 32bit/64bit OS's in existence.
I can appreciate the constraints of support and development time and very much appreciate the replies from members who have taken time to respond in a positive manner with advice on how to move forward. Without wanting to open a can of worms I just wish those with supercilious comments would keep them to themselves, what's the point of welcoming me to 2018? Sneering at others has never been a particulkarly attractive trait.
When I migrated from Windows 8 to Windows 10 some years ago the advice from ALL INTERESTED PARTIES was DO NOT UPGRADE to 64bit, the amount of 64bit software available was limited and most of the programmes you were using would not run unless a 64bit version had been specifically released. The advice was strongly against changing to 64bit. It appears that things have now changed and I will happily upgrade to 64bit.
Many thanks for the constructive replies.