I've been reasonably happy with a laptop I've had running Windows 7. Then it stealth-updated itself to Windows 10. I turned off most of the ads, but the lock sc

I've been reasonably happy with a laptop I've had running Windows 7. Then it stealth-updated itself to Windows 10. I turned off most of the ads, but the lock screen still had ads. I had to turn of some service with an incongruous name to kill those but Cortana still shows up on the lock screen telling me to talk to it. Like I'm going to do that? Also, the start menu is all fubared. I end up using search from the start menu, which works but is really slow. I'll get the search box and type something into it and it's 30 seconds to a minute before my text shows up there, usually missing the first 2-3 characters I typed... but not always. Microsoft needs to have a good hard look at why they had so much trouble moving people off of XP. It's like they hit an inflection point there with the least amount of suckage.