Every time they push a 10 update, something breaks on my system and it is unusable for hours to find the workaround or until I give up and uninstall the update. Meanwhile all of my win7 systems hum along happily with zero issues.
Yeah, I tried upgrading a few times last year and it did not go well. I gave up.
My 8.1 system runs perfectly, anyway. I'm happy with it.