I don't know what kind of error is this error,I'll call it 'Black Screen error'.
This error appears randomly. For example: when I modeling, UV unweaping, jump into Texture mod...
Recently I had upgraded my CPU(Ryzen7 1800x), motherboard and I bought 700w PSU,
also I reinstaled Windows and moved blender on SSD for faster loading.
I really don't know if 8 Core CPU is issue for blender 2.79,
and I can't find out any fix of this black screen error.
I'll be glad for any response. I'm encloasing screenshot of error.