Fixing blank developer tools windows Edge
 I recently started developing again on Windows (after 10 years on Ubuntu) after getting a PC with Windows 10 installed on it. As a dart developer the first thing I did was to try some web apps on Edge...trying to get console..F12..nothing, just the screen split in 2 with a blank/grey windows on the right.   After digging I found a solution deep in the following issue .   Start a power shell console in administrative mode than use the following command:   Add-AppxPackage -register "C:\windows\SystemApps\Microsoft.MicrosoftEdgeDevToolsClient_8wekyb3d8bbwe\AppxManifest.xml" -DisableDevelopmentMode -Confirm:$false   Restart Edge, press F12, that's it!