I have a trouble about displaying photo image.
Recently I constructed new PC (profile below) and installed lightroom there.
Before making any changes in software configs I tried to edit some raw file, just finding the post-edit screen stay blue and never say anything.
Re-installing lightroom didn't relieve the condition.
Does anyone have an idea about this? How should I do?
Hardware: Intel core i5 6600 / Z170 M/B / no graphic extension card / HDMI connection
Software: Windows 10 education 64bit / Lightroom CC 2015.2.1 
Please update your GPU drivers from the manufacturers website.
Meanwhile Disable "Use Graphics Processor" (Preferences > Performance),
For more details, Adobe Photoshop Lightroom Help | Lightroom GPU FAQ
Let us know if that helps
OK I understand the gimmick. Thank you for your precise advice.