Hi Brian. The answer is complicated. It's the same machine, ie, same cpu, hard drive, etc. After I last communicated with you, I had out of town guests until after Xmas. When I next tried to use the system, it would only boot into safe mode. I then tried loading several prior VMware Win 10 images; going back to August. Each failed to update with the KB3106246 update, the last one before 1511. This comprises the image created before the one you and I worked on. A clean install is really not viable because of the great number of programs installed. The computer is dual boot with Win 7 Pro. The OS's are on different drives. For what it's worth, attached is SRTTrail.txt created with a Win 10 1511 boot disk created from Techbench download. I desperately need to get this problem resolved. Thanks.