@Nightowlz People have different components in their computers. Whether Win10 works well or not is totally dependent on the guts of the computer. It is not always the owner of the computer doing something wrong.
WIN10 is a huge operating system, and it is a resource hog (hence why we suddenly saw computers being sold with 12gb RAM (memory) and 1TB hardrives.
Anyone with an older processor, or are running with only 4 gigs of ram will have trouble.
It is also graphic intensive, running all those apps, plus webpages in general are "graphic heavy" with all sorts of ads, AND WIN10 runs a bunch of background processes. That adds to misery for some who own computers with not enough power, speed, or ram will have trouble.
That is why it is so unfair Microsoft is forcing it. BUT....ahhhh...follow the money. People who auto-upgrade, and cannot work out the kinks, or it just screwed up their computer so bad, are going to throw in the towel and buy a new computer.
And what is Microsoft pushing so hard? Their new computers...The surface pro, and their tablets, etc. THEIR BRAND. They are betting on people just buying all Microsoft products. Just like Apple. Copycat babies. Irritating all around.
If I wanted a Microsoft computer I would buy one.