[Golden Eagle]

AS/400s, mainframes, Macs, RISC processors, etc

Those are mostly servers, which are typically outnumbered by at least 10 to 1 by desktops, and server sales are currently 70% Windows anyway, so you're only talking about .3 of the .1 maketshare servers even have in the tally of all computers. I said ~90% which is still probably about right, will you settle for 88%?

[TechJunkYard]

You said "ALL systems", so I'd throw routers and POS in there too. Why don't you just amend that to say "all desktop systems"? That's closer to the truth.