Thanks for the suggestions. I will let it run longer to see what happens. Regarding latest updates. The first time I tried to install Windows 10, I also discovered that Windows update downloaded a pile of new files. Yesterday, I installed all of those and then rechecked to be sure there weren't more available. The only one left was the Windows 10 upgrade so that is what is being installed as of now. I started it last night about 11:00 pm. It is now 2:31 pm today and I won't be home for another three hours so we'll see where it goes from there. If this one fails, I will probably give the update tool a look and try it one last time.