I upgraded my win 7 Ultimate to Win 10 prof.( I made a disk) Everything went smoothly until I noticed that I had a yellow triangle on the network icon. I did the windows network diagnostics and it came up with "local area connection doesn't have a valid IP configuration". I went into local area connection properties, networking under "Internet protocol version 4" and hit properties and nothing happened. I rebooted and tried again still nothing happened. I finally restored back to Win 7 but I had the same problem. I restored to a earlier date in safe mode and same problem. After a few hours I came back to try again and the problem was fixed. I want to try to upgrade again, any suggestions?