1. Globally Installing TypeScript

   You can use npm to install TypeScript globally, this means that you can use the tsc command anywhere in your terminal

   npm install -g typescript

To run typescript npx tsc

2. Check Typescript version

   tsc -v

3. You might get Error

4. 

You can run this command in PowerShell. Make sure to run it as an administrator

// run Powershell as Administrator
Set-ExecutionPolicy -ExecutionPolicy RemoteSigned

Now you can Check, your typescript version

tsc -v