For months, I have been dragging my heels about upgrading from Windows 8,1 to Windows 10. Finally, I let them talk me into it. I must admit to mixed results, but I am mostly satisfied with the new system. My biggest gripe involved losing access to my email accounts. While I regained access to my Yahoo mail after a day, it took more than three days of hard work to regain control over my Hotmail account, which I have had for the past 13 years. It seems that I should have updated old security info on my Microsoft account BEFORE downloading the new software. This is something they don't tell you about.
The download itself took more than 45 minutes, running on a high speed computer with a high speed (100 mbps) internet connection. One thing in it's favor was that upgrading solved the problems that I had been having in accessing this site. I still get the ads, but I no longer get the warning that internet explorer has shut down. Getting used to the way the IE controls look and work took a little getting used to, but not insurmountable. Of course, Microsoft wants to sell me a new version of their Office software, but the Office 10 still works on the new platform. The new version is Office 13, and the more powerful Office 365, which does most of it's work on the cloud. I prefer to keep my documents on my own machine, thank you very much.
I turned Cortana off. I'm fine with typing in any search terms that I may be looking for, I don't need to use a voice interface, and I sure don't like the idea of the computer listening in on my conversations. Big Brother has far too much access to everyone's life, no need to hand it to them on a silver platter. I also turned off the touch screen feature. I live in the desert, where we have a lot of quartz dust flying around, and if you touch your monitor screen, it will get scratched. My monitor was chosen for not having this feature.
Not all technological 'improvements' are beneficial.