TYPESCRIPT

ng : File C:Program Files odejs g.ps1 cannot be loaded because running scripts is disabled on this system.

Run this command on your VScode integrated terminal: 
Set-ExecutionPolicy -ExecutionPolicy Unrestricted

g.ps1 cannot be loaded because running scripts is disabled on this system.

Set-ExecutionPolicy -Scope "CurrentUser" -ExecutionPolicy "RemoteSigned"

How To Fix Error PS1 Can Not Be Loaded Because Running Scripts Is Disabled On This System In Angular

run this command three command one by one
set-ExecutionPolicy RemoteSigned -Scope CurrentUser 
Get-ExecutionPolicy
Get-ExecutionPolicy -list  

after check angular version this command
ng  version

ng.ps1 cannot be loaded because running scripts is disabled on this system vscode

I found out here that you can add to your visual studio code settings the following and the problem will vanish: For visual studio code settings, go to File -> Preferences -> Settings -> Extensions -> Scroll down and find "Edit in settings.json"

"terminal.integrated.shellArgs.windows": ["-ExecutionPolicy", "Bypass"]
The reason is that, in build command line integrations like visual studio code, you need to set the command line policies by your self. By setting the above configurations, the visual studio code will do that for you.

(read this to understand better the command line policies)