diff --git a/export.ps1 b/export.ps1
index a2cafd55ae..7d9c66b19d 100644
--- a/export.ps1
+++ b/export.ps1
@@ -1,21 +1,16 @@
-if ($env:MSYSTEM -ne $null) {
-    Write-Output "This .ps1 file is for Windows Powershell only. When using MSYS, run:`n. ./export.sh."
-    exit 1
-}
-
-
+#!/usr/bin/env pwsh
 $IDF_PATH = $PSScriptRoot
 
 Write-Output "Setting IDF_PATH: $IDF_PATH"
 $env:IDF_PATH=$IDF_PATH
 
 Write-Output "Adding ESP-IDF tools to PATH..."
-$OLD_PATH=$env:Path.split(";") | Select-Object -Unique # array without duplicates
+$OLD_PATH=$env:PATH.split([IO.Path]::PathSeparator) | Select-Object -Unique # array without duplicates
 # using idf_tools.py to get $envars_array to set
-$envars_raw = python.exe $IDF_PATH\tools\idf_tools.py export --format key-value
+$envars_raw = python $IDF_PATH/tools/idf_tools.py export --format key-value
 if ($LASTEXITCODE -ne 0) { exit $LASTEXITCODE } # if error
 
-$envars_array # will be filled like: 
+$envars_array # will be filled like:
 #               [
 #                    [vname1, vval1], [vname2, vval2], ...
 #               ]
@@ -24,8 +19,6 @@ foreach ($line  in $envars_raw)
     $pair = $line.split("=") # split in name, val
     $var_name = $pair[0].Trim() # trim spaces on the ends of the name
     $var_val = $pair[1].Trim() # trim spaces on the ends of the val
-    $var_val = $var_val -replace "%(.+)%", "`$env:`$1" # convert var syntax to PS using RegEx
-    $var_val = $ExecutionContext.InvokeCommand.ExpandString($var_val) # expand variables to values
     $envars_array+=(,($var_name, $var_val))
 }
 
@@ -33,11 +26,22 @@ foreach ($pair  in $envars_array) # setting the values
 {
     $var_name = $pair[0].Trim() # trim spaces on the ends of the name
     $var_val = $pair[1].Trim() # trim spaces on the ends of the val
-    Set-Item -Path "Env:$var_name" -Value "$var_val" 
+    if ($var_name -eq "PATH"){
+        # trim "%PATH%" or "`$PATH"
+        if($IsWindows){
+            $var_val = $var_val.Trim([IO.Path]::PathSeparator + "%PATH%")
+        }else{
+            $var_val = $var_val.Trim([IO.Path]::PathSeparator + "`$PATH")
+        }
+        # apply
+        $env:PATH = $var_val + [IO.Path]::PathSeparator + $env:PATH
+    } else {
+        New-Item -Path "env:$var_name" -Value "$var_val"
+    }
 }
 
 #Compare Path's OLD vs. NEW
-$NEW_PATH = $env:Path.split(";") | Select-Object -Unique # array without duplicates
+$NEW_PATH = $env:PATH.split([IO.Path]::PathSeparator) | Select-Object -Unique # array without duplicates
 $dif_Path = Compare-Object -ReferenceObject $OLD_PATH -DifferenceObject $NEW_PATH -PassThru
 if ($dif_Path -ne $null)
 {
diff --git a/install.ps1 b/install.ps1
index 8067df81ee..df55bd3e2d 100644
--- a/install.ps1
+++ b/install.ps1
@@ -1,18 +1,13 @@
-if ($env:MSYSTEM -ne $null) {
-    Write-Output "This .ps1 file is for Windows Powershell only. When using MSYS, run:`n. ./export.sh."
-    exit 1
-}
-
-
+#!/usr/bin/env pwsh
 $IDF_PATH = $PSScriptRoot
 
 
 Write-Output "Installing ESP-IDF tools"
-Start-Process -Wait -NoNewWindow -FilePath "python.exe" -Args "$IDF_PATH/tools/idf_tools.py install"
+Start-Process -Wait -NoNewWindow -FilePath "python" -Args "$IDF_PATH/tools/idf_tools.py install"
 if ($LASTEXITCODE -ne 0)  { exit $LASTEXITCODE } # if error
 
 Write-Output "Setting up Python environment"
-Start-Process -Wait  -NoNewWindow -FilePath "python.exe" -Args "$IDF_PATH/tools/idf_tools.py install-python-env"
+Start-Process -Wait  -NoNewWindow -FilePath "python" -Args "$IDF_PATH/tools/idf_tools.py install-python-env"
 if ($LASTEXITCODE -ne 0)  { exit $LASTEXITCODE} # if error