Enter cnpm -v and cnpm appears: the file c:\users\19457\appdata\roaming\npm\cnpm.ps1 cannot be loaded because running scripts is prohibited on this system.

It's finished today cnpm, Check the version with the following errors ：

cnpm :  Unable to load file  C:\Users\19457\AppData\Roaming\npm\cnpm.ps1, Because scripts are not allowed to run on this system . For more information , see also  https:/go.microsoft.com/fwlink/?LinkID=135170  Medium  about_Execu 
tion_Policies.
 The position of   That's ok :1  character : 1
+ cnpm -v
+ ~~~~
    + CategoryInfo          : SecurityError: (:) [],PSSecurityException
    + FullyQualifiedErrorId : UnauthorizedAccess

terms of settlement ：

1、windows+r Input PowerShell

2、 Input set-ExecutionPolicy RemoteSigned enter

3、 According to the prompt , Input A, enter

4、 Input again get-ExecutionPolicy Until we see RemoteSigned It was successful .

If the first 2 Enter “ set-ExecutionPolicy RemoteSigned” The error reported by entering is as follows ：

set-ExecutionPolicy :  For registry keys “HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\PowerShell\1\ShellIds\Microsoft.PowerShell” Of 
 Access denied .  To change the default (LocalMachine) Execution strategy of scope , Please use “ Run as administrator ” Option to start the  Windows PowerShell. To change when 
 The execution strategy of the former user , Please run  "Set-ExecutionPolicy -Scope CurrentUser".
 The position of   That's ok :1  character : 1
+ set-ExecutionPolicy RemoteSigned
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : PermissionDenied: (:) [Set-ExecutionPolicy], UnauthorizedAccessException
    + FullyQualifiedErrorId : System.UnauthorizedAccessException,Microsoft.PowerShell.Commands.SetExecutionPolicyComma
   nd

terms of settlement ：

1、 Enter... At the prompt Set-ExecutionPolicy -Scope CurrentUser
After returning , Input remotesigned

2、 Input Y

3、 Input again get-executionpolicy see Whether to remove the restriction
Show RemoteSigned According to successful

ps： It's not just cnpm command , Include pnpm、yarn Wait for these orders , If the execution , Report such a mistake , Can be solved by this method . Premise is , If it is to use npm Command to install these CLI Command tool , Must be installed in the global environment , To take effect .