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I have the most recent Bitcoin Core "QT" for 64 bit Windows running on my system, It is working from what I can tell via the debug log. The splash screen loads and displays the loading and rewinding of the index. And when, I gather, it reaches 100%, the window minimizes and will not restore. It remains on the taskbar as a program running. The little app by the clock is there and a right click brings up a menu. But I cannot see the actual account details. 
I am able to quit the program safely. I did so and reinstalled a fresh version but there is no change. The program worked properly, previously. Because of some hardware power problem recently in my region I have not always run the code.
Like I say, the code is working but the Gui screen simply does not display. I gather I can run bitcoind instead and use a CLI, but does anyone know of a way to get the GUI back?
Which version of Bitcoin Core are you using? – Pieter Wuille – 2016-12-10T01:11:35.290
Bitcoin Core 0.13.1 – MikeLieberman – 2016-12-11T02:36:15.970
I am having same problem I used to have core 0.13.1 I uplgraded to 0.14.0-win64 and GUI is not showing eventhoug the core seems to be running – Daniel – 2017-03-17T11:42:09.957