Don't feel bad, you're not alone in this. You need to restart your computer. It's the same with corporations too. How many companies that were prominent a century ago are even still in existence today. There is another way to look at this.
Conquerors do that.
On go the lights, out come the Melatonin tablets. Bill may know that in the long term Microsoft has no future in operating systems. An open standards, cross-platform, netcentric computing environment is at odds with a monopolistic operating systems world view. We live in a customized world. Once Henry Ford said that a Ford customer could have their car in any color as long as it was black.