Installing the nodejs environment

PS C:\Users> cnpm -v
cnpm : Unable to load file C:\Users\D06340\AppData\Roaming\npm\cnpm.ps1, Because scripts are not allowed to run on this system . For more information , see also https:/g
o.microsoft.com/fwlink/?LinkID=135170 Medium about_Execution_Policies.
The position of That's ok :1 character : 1

• cnpm -v

•   + CategoryInfo          : SecurityError: (:) [],PSSecurityException
    + FullyQualifiedErrorId : UnauthorizedAccess
  

PS C:\Users> set-ExecutionPolicy RemoteSigned
set-ExecutionPolicy : For registry keys “HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\PowerShell\1\ShellIds\Microsoft.PowerShell” The interview of
Be rejected . To change the default (LocalMachine) Execution strategy of scope , Please use “ Run as administrator ” Option to start the Windows PowerShell. To change the current user's
Execution strategy , 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.SetExecutionPolicyCommand
  

PS C:\Users\D06340> set-ExecutionPolicy -Scope CurrentUser

In the command pipeline 1 Of cmdlet Set-ExecutionPolicy
Please provide values for the following parameters :
ExecutionPolicy: RemoteSigned
PS C:\Users\D06340> cnpm -v

[email protected] (C:\Users\D06340\AppData\Roaming\npm\node_modules\cnpm\lib\parse_argv.js)
[email protected] (C:\Users\D06340\AppData\Roaming\npm\node_modules\cnpm\node_modules\npm\index.js)
[email protected] (D:\nodejs\node.exe)
[email protected] (C:\Users\D06340\AppData\Roaming\npm\node_modules\cnpm\node_modules\npminstall\lib\index.js)
prefix=null
win32 ia32 10.0.18363
registry=https://registry.npmmirror.com

#PS C:\Users\xxx> cnpm install -g yarn
Yarn install : https://www.yarnpkg.com/lang/en/