fix(installer): extract portable Node with ZipFile

CHANGELOG.md

@@ -63,7 +63,7 @@ Docs: https://docs.openclaw.ai
 - Plugins/discovery: strip `-plugin` package suffixes when deriving plugin id hints so package names line up with manifest ids. (#85170) Thanks @JulyanXu.
 - Telegram: preserve fenced code block languages through Markdown rendering so Telegram receives `language-*` code classes. (#85209) Thanks @leno23.
 - Windows installer: bootstrap a user-local portable Node.js when native Windows has no Node and no winget, Chocolatey, or Scoop, so first-run installs can continue on raw hosts.
-- Windows installer: copy the downloaded portable Node.js directory into place so PowerShell 5.1 first-run bootstraps do not fail while moving zip contents.
+- Windows installer: extract and copy the downloaded portable Node.js directory without PowerShell 5.1 `Expand-Archive`/move failures.
 - fix(integrations): enforce channel read target allowlists [AI]. (#84982) Thanks @pgondhi987.
 - Agents/heartbeat: route single-owner `session.dmScope=main` direct-message exec and cron event wakes back to the agent main session so async completions no longer strand context in orphan direct-DM queues. Fixes #71581. (#83743) Thanks @Kaspre.
 - Agents/code-mode: expose outer code-mode `exec` source through the `command` hook alias with `toolKind`/`toolInputKind` discriminators so exec-shaped policies can distinguish code-mode cells. (#83483) Thanks @Kaspre.

scripts/install.ps1

@@ -183,6 +183,18 @@ function Resolve-PortableNodeDownload {
     }
 }
 
+function Expand-PortableNodeArchive {
+    param(
+        [Parameter(Mandatory = $true)]
+        [string]$ZipPath,
+        [Parameter(Mandatory = $true)]
+        [string]$DestinationPath
+    )
+
+    Add-Type -AssemblyName System.IO.Compression.FileSystem
+    [System.IO.Compression.ZipFile]::ExtractToDirectory($ZipPath, $DestinationPath)
+}
+
 function Install-PortableNode {
     if (Use-PortableNodeIfPresent) {
         Ensure-PortableNodeOnUserPath
@@ -208,12 +220,11 @@ function Install-PortableNode {
     if (Test-Path $tmpExtract) {
         Remove-Item -Recurse -Force $tmpExtract
     }
-    New-Item -ItemType Directory -Force -Path $tmpExtract | Out-Null
 
     try {
         Write-Host "  Downloading Node.js $($download.Version)..." -ForegroundColor Gray
         Invoke-WebRequest -UseBasicParsing -Uri $download.Url -OutFile $tmpZip
-        Expand-Archive -Path $tmpZip -DestinationPath $tmpExtract -Force
+        Expand-PortableNodeArchive -ZipPath $tmpZip -DestinationPath $tmpExtract
 
         $nodeDir = Get-ChildItem -Path $tmpExtract -Directory |
             Where-Object { Test-Path (Join-Path $_.FullName "node.exe") } |

test/scripts/install-ps1.test.ts

@@ -121,6 +121,7 @@ describe("install.ps1 failure handling", () => {
     const userPathBody = extractFunctionBody(source, "Add-ToUserPath");
     const depsRootBody = extractFunctionBody(source, "Get-OpenClawDepsRoot");
     const resolveNodeBody = extractFunctionBody(source, "Resolve-PortableNodeDownload");
+    const expandNodeBody = extractFunctionBody(source, "Expand-PortableNodeArchive");
 
     expect(installNodeBody).toContain("Install-PortableNode");
     expect(installNodeBody).toContain("Portable Node.js bootstrap failed");
@@ -137,6 +138,10 @@ describe("install.ps1 failure handling", () => {
       '[Environment]::SetEnvironmentVariable("Path", $newUserPath, "User")',
     );
     expect(portableNodeBody).toContain("Invoke-WebRequest -UseBasicParsing");
+    expect(portableNodeBody).toContain("Expand-PortableNodeArchive");
+    expect(portableNodeBody).not.toContain("Expand-Archive");
+    expect(portableNodeBody).not.toContain("New-Item -ItemType Directory -Force -Path $tmpExtract");
+    expect(expandNodeBody).toContain("System.IO.Compression.ZipFile");
     expect(resolveNodeBody).toContain("https://nodejs.org/dist/index.json");
     expect(resolveNodeBody).toContain("win-$architecture-zip");
     expect(resolveNodeBody).toContain("node-$($release.version)-win-$architecture.zip");