Installed new 0.12.0. Re-indexed with server=1 and txindex=1 options. All works fine but after windows(Server 2012 R2) rebooting wallet windows is not show. When I start BitcoinCore I see
and after it verified wallet not shown.

Window is minimized and blank but not possible to open it. Options from bottom right tray does not work also.
I've re-install everything. Changed data folder destination. Installed 0.11.* version. All time result is the same - wallet windows is empty and minimized. But it still is synchronizing and can be queried.
Do someone have any idea how to make it working properly?