Crash when using material editor

Lately whenever I open the material editor Unreal will crash. Sometimes I am lucky enough to get it to open but as soon as I drop in a texture to use it will crash.
Ive tried new and old projects. Crash.
UE4.16 and previous versions. Crash.
Updated my graphics drivers. Crash.

Intel Core i7-6700 CPU @ 3.40 ghz. Memory: 16gb. Video Card: NVIDIA GeForce GTX 1070.

Any ideas because I am close to doing a reformat.