Windows

Installation on Windows (Powershell)

Tested on Windows 10/11 (64-bit) with PowerShell 7.x or higher. Requires Administrator rights for system-wide installs and changes to execution policy.

1. Prerequisites

• Windows 10/11, 64-bit (Requires Administrator rights for system-wide installs and changes to execution policy)

• PowerShell 7+ (install/update via GitHub releases)

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2. Install Node.js (v22+) & npm

To install using the official installer:

1. Download the Windows x64 MSI for Node.js v22.x.x (LTS) https://nodejs.org/en/download/

2. Right-click → Run as Administrator.

3. Accept defaults on each screen (ensures node & npm are added to your PATH).

After installing, you can verify the version by running the following command in your powershell:

node --version   # should be v22.x.x or higher
npm --version

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3. (Optional) nvm-for-Windows

If you need multiple Node versions side by side:

1. Download nvm-setup.zip from https://github.com/coreybutler/nvm-windows/releases

2. Unzip & run nvm-setup.exe as Administrator.

3. Open a new PowerShell session, then:

   nvm install 22.24.0
   nvm use 22.24.0
   node --version   # now v22.24.0

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4. Handling PowerShell Execution Policy & Blocked Remote Files

Issue: scripts cannot be loaded because running scripts is disabled on this system

• Allow local & signed scripts only:

  Set-ExecutionPolicy -Scope CurrentUser -ExecutionPolicy RemoteSigned

Issue: Powershell flagging .ps1 or .msi as “blocked",

• Unblock remote files:

  Get-ChildItem .\path\to\downloads\* -Recurse |
    Unblock-File

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5. Install the P0 CLI

npm install -g @p0security/cli

If you see permissions errors, run powershell as an administrator and run the command again.

Alternatively, to use a per-user install, run the following command:

npm install --location=global @p0security/cli

You can verify P0 installation in your system by running the following command:

p0 --version
p0 help

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6. AWS CLI & Session Manager Plugin (for p0 aws & p0 ssh)

AWS CLI v2

To install AWS CLI v2:

• Download the MSI: https://awscli.amazonaws.com/AWSCLIV2.msi

• Run installer as administrator.

You can verify the installation by running the following command:

 ```powershell
 aws --version    # e.g. aws-cli/2.x.x Python/3.x Windows/10 exe/AMD64
 ```

Session Manager Plugin

• Download from: https://docs.aws.amazon.com/systems-manager/latest/userguide/session-manager-working-with-install-plugin.html#install-plugin-windows

• Run the MSI.

You can verify the installation by running the following command:

 ```powershell
 session-manager-plugin --version
 ```

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7. Handling Proxy & Corporate Firewall Issues

Issue: npm install times out, or p0 login can’t reach your org.

• Set npm proxy:

  npm config set proxy http://proxy.company.com:8080
  npm config set https-proxy http://proxy.company.com:8080

• Set Environment vars:

  [Environment]::SetEnvironmentVariable('HTTP_PROXY','http://proxy.company.com:8080','User')
  [Environment]::SetEnvironmentVariable('HTTPS_PROXY','http://proxy.company.com:8080','User')

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8. Troubleshooting & Tips

Symptom	Cause / Fix
p0: command not found	- Restart PowerShell (to pick up new PATH).- Check %USERPROFILE%\AppData\Roaming\npm.
Error: EACCES permissions denied	- Run PowerShell as Administrator.- Try --location=global for npm.
Set-ExecutionPolicy still blocked on corporate PC	- Check with IT: some shops lock policy via Group Policy (GPO).
session-manager-plugin not recognized	- Ensure AWS CLI folder is on PATH.- Reopen PowerShell.
p0 login never opens browser	- Set $env:AZURE_AUTH_METHOD = 'browser' for certain orgs that disable embedded webviews.

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You’re all set! Next up: Configuration → p0 login <YOUR_ORG_ID> and start requesting access.