I was guessing the 3-5, for us it 3 and 4(3 laptops/4 desktops). Do you mean the replace HW faster or slower? It depends on size, we have over 60,000 computer

I was guessing the 3-5, for us it 3 and 4(3 laptops/4 desktops). Do you mean the replace HW faster or slower? It depends on size, we have over 60,000 computers and before End of Support for XP we moved to 7 in under a year. That was a kick in the butt and Win10 has been far quicker. It's the standard and almost everything deployed gets it, but there are always stranglers who are slower. You have to take from other projects to do a mass upgrade and it can be a hard sell when it will happen on the systems renewal schedule anyways.