I click on the launcher, and I cannot log in, it only shows a blank screen

I provided a screenshot of what happens once I click on the launcher, and this persists indefinitely. I cannot exit out of the launcher unless I go into the TaskManager and do not have access to logging into the game at all. 

  I have updated Java, Windows OS, and deleted all Minecraft files from my computer and downloaded from Minecraft.net and this has still not resolved the issue. Any help would be appreciated thankyou.