why i am getting – file cannot be loaded because running scripts is disabled on this system

While loading a python file in pycharm i am getting the following warning, earlier it was not there also print('Hello') is working as expected but i am not able to install django.

File C:\Users\abhi\PycharmProjects\django_apps\venv\Scripts\activate.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.
    + CategoryInfo          : SecurityError: (:) [], ParentContainsErrorRecordException
    + FullyQualifiedErrorId : UnauthorizedAccess

>Solution :

Try to check this, it may be helpful.

Here’s how you can make it possible to run the PowerShell script:

Open the admin level terminal for Windows PowerShell or the IDE you
are currently using. Enter Get-ExecutionPolicy. It shows the policy
for the current PowerShell session. You can also enter
Get-ExecutionPolicy -List to list out the policies for all scopes.
get-execution-policy Change the execution policy for the scope you
want. The command you need for this purpose is: Set-ExecutionPolicy
-ExecutionPolicy <policy name> -Scope <scope>. In general, we
recommend using Set-ExecutionPolicy -Scope CurrentUser
-ExecutionPolicy RemoteSigned, as it is more secure. set-execution-policy If it doesn’t solve the issue, enter:
Set-ExecutionPolicy -Scope CurrentUser -ExecutionPolicy Unrestricted

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