My first OS was 98se and it was incredible compared to some older OS versions except it was prone to crashes and difficulty getting full update files due to my slow internet connection at the time, which also crashed the computer. Then came WinMe, the undisputed crash king from MS, in my opinion. It was a steep learning curve for an amateur like myself. When XP came out, it was light years better then 98se in terms of speed and stability. I still keep it running as my second OS (dual boot) mainly because I have hardware & software that where built to run on it and despite some who say that Win7 will run all that older hardware, yes it will, but usually only the basic functions of the device ie. printers/scanners etc. and trying to find/download drivers for older hardware that will give me full functionality running Win7 is nye impossible. Then came Vista, which in my opinion was much slower and clunkier than XP. When I got Win7, it was even better than XP and I will stay it with for a long time, I hope. As for Win8 & Win10, I guess that I can't see any features appealing enough with them to make me change to them. But then again, these are just the opinions of an old dude that sometimes resists change when he finds something that works good for him.