I think we missed an opportunity here to get some debug data and maybe file a bug report. I guess next time then..
I think next time too as I just installed Windows 10 pro latest build yesterday late at night and first thing I tried electrum 2.7.11 . Restored through my seed and everything running smoothly so far, I am locking the thread and if any problems arises I will re open it and let you know. Thanks for your help.