This has nothing to do with this thread, as this deals with Enterprise and in that sense MS would try and build so that the Kernel didn't change to the point that it would cause a huge uproar in the Business world. "Also" I said programs, which was the scope of your rant. It's quite obvious that windows must be made to run on hardware designed as a windows based OS, so why you would even bring it up when your entire point was about software, upgrading OS, and a registry which covers mapping of such programs which you covered dealing with in older posts, is beyond me. I believe the statement was- (( Get one computer with applications already installed and upgraded etc. normal daily use over a long period of time and perform a Windows upgrade to a certain version. Get an identical blank hard disk, install Windows and all the applications exactly as per the upgraded computer and copy the data as well.)) CCleaner is one of the biggest Snake Oil's in the world, even when a thousand keys are mapped to empty locations, this has zero affect on windows performance, and registry cleaners win in the arena for the top Snake oil. They must have owned HP's or Dells. Your posts seem to be long winded rants about nothing closely related to actual facts, figures, of the inner workings of the OS, but merely addressed general assumptions of such workings. With your OS knowledge, which you seem to convey, I'm sure this is an easy question to answer. When MS changed the Kernel in win 8, what was the change to the UEFI/BIOS that MFG's had to scramble to fix for the OS. I hope you have a wonderful day, and thanks for posting so much methodical data about this build vs the 10240, the graphs, bugs covered, you should be working at MS.