expo.ps1 cannot run scripts on this system code example

Example 1: running scripts is disabled on this system

=>run powershell as administrator
=>run foll command
get-ExecutionPolicy
=>if restricted; run following command
set-ExecutionPolicy Unrestricted
=>and set to all
=>again check by foll. command
get-ExecutionPolicy
**it will get unrestricted and problem is solved**

Example 2: AppData\Roaming\npm\react-native.ps1 cannot be loaded because running scripts is disabled on this system. For more information, see about_Execution_Policies at https:/go.microsoft.com/fwlink/?LinkID=135170.

Set-ExecutionPolicy -Scope CurrentUser -ExecutionPolicy Unrestricted