thanks for the upgrade...not

so I look up today and I see my laptop upgrading itself to windows 10 without asking...

thanks for that...not

looks like I'm not alone

http://www.infoworld.com/article/3043526/microsoft-windows/microsoft-upgraded-users-to-windows-10-without-their-ok.html

I'm afraid to click on Decline when the EULA popped up. What does it do then?

update: it rolls you back to your previous windows after much disk thrashing.