I did a test for the he l of it, I upgraded to 10162, saved nothing, when installed I ran sfc /scannow to see if their where any problems, yes they were corrupt files, so looked in Logs and I could not believe all the stuff that was in there, I don't even know how computer booted, it even had a scrollbar because it would not all fit on same page. I really thought something was wrong with my computer, so now I did clean install, ran sfc / scannow to see how many problems there were, NONE. The moral of the story is even though it is easier to do upgrade, keep your programs, that is not the way to do it, ALWAYS do clean install, alot of the problems you have now would disappear. I run sfc /scannow everyday to check and see if all my system files are in order, If they are not I put on the previous day image backup until sfc finds no problems. You have to be very carefull when you change things in registry, if you change something, run sfc and see if all is OK, if not, reverse what you just did, Remember Clean Install.