PowerShell script to remove duplicate entries from PATH environmental variables in Windows.

_README.md

Remove Duplicate Entries from PATH Environmental Variables

This PowerShell script will check the system PATH variable and the user PATH variable for duplicates and then remove any duplicates found.

The script is NOT lazy - it actually checks each environmental variable separately, NOT simply $ENV:PATH.

Enjoy! 😊️️❤

Install Note

You can also install this script by typing...

Install-Script -Name Remove-DuplicatesFromPathVariables

As available on PowerShell Gallery.

Remove-Duplicate-Entries-From-Path-Variables.ps1

Clear-Host;

# Begin
Write-Output "⏲️⏲️⏲️ Starting ⏲️⏲️⏲️"
Write-Output ("-" * 50)
Write-Output ""

# System PATH
Write-Output "🖥️ Checking System PATH 🖥️"
$TempMachinePath = [System.Environment]::GetEnvironmentVariable("Path", "Machine");
$Dupes = ($TempMachinePath.Split(";") | Group-Object | Where-Object { $_.Count -gt 1 }).Values;
if ($Dupes.Count -gt 0) { $Dupes | ForEach-Object { $TempMachinePath = $TempMachinePath.Replace("$_;", ""); $TempMachinePath += "$_;" }; [System.Environment]::SetEnvironmentVariable("Path", $TempMachinePath, "Machine") }
Write-Output @"
$("-" * 50)
Found duplicates
$("-" * 50)
$Dupes
$("-" * 50)
Removing duplicates, result...
$("-" * 50)
$TempMachinePath
"@;

# User PATH
Write-Output ""
Write-Output ("-" * 50)
Write-Output "🧑 Checking User PATH 🧑"
$TempUserPath = [System.Environment]::GetEnvironmentVariable("Path", "User");
$Dupes = ($TempUserPath.Split(";") | Group-Object | Where-Object { $_.Count -gt 1 }).Values;
if ($Dupes.Count -gt 0) { $Dupes | ForEach-Object { $TempUserPath = $TempUserPath.Replace("$_;", ""); $TempUserPath += "$_;" }; [System.Environment]::SetEnvironmentVariable("Path", $TempUserPath, "User") }
Write-Output @"
$("-" * 50)
Found duplicates
$("-" * 50)
$Dupes
$("-" * 50)
Removing duplicates, result...
$("-" * 50)
$TempUserPath
"@;

# Complete
Write-Output ""
Write-Output ("-" * 50)
Write-Output "✔️✔️✔️ Complete ✔️✔️✔️"