diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 17af2ee299..790c3c7957 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -269,32 +269,36 @@ jobs:
           RUST_MIN_STACK: 8388608
 
       - name: Test global package install (powershell)
-        if: ${{ matrix.os == 'windows-latest' }}
+        if: ${{ matrix.os != 'namespace-profile-linux-x64-default' }}
         shell: pwsh
         run: |
-          echo "PATH: $env:Path"
-          where.exe node
-          where.exe npm
-          where.exe npx
-          where.exe vp
+          $vpHome = Join-Path $HOME ".vite-plus"
+          $vpBin = Join-Path $vpHome "bin"
+          . (Join-Path $vpHome 'env.ps1')
+
+          Write-Host "PATH: $env:Path"
+          Get-Command node
+          Get-Command npm
+          Get-Command npx
+          Get-Command vp
           vp env doctor
 
           # Test 1: Install a JS-based CLI (typescript)
           vp install -g typescript
           tsc --version
-          where.exe tsc
+          Get-Command tsc
 
           # Test 2: Verify the package was installed correctly
-          Get-ChildItem "$env:USERPROFILE\.vite-plus\packages\typescript\"
-          Get-ChildItem "$env:USERPROFILE\.vite-plus\bin\"
+          Get-ChildItem (Join-Path $vpHome "packages/typescript")
+          Get-ChildItem $vpBin
 
           # Test 3: Uninstall
           vp uninstall -g typescript
 
           # Test 4: Verify uninstall removed shim
           Write-Host "Checking bin dir after uninstall:"
-          Get-ChildItem "$env:USERPROFILE\.vite-plus\bin\"
-          $shimPath = "$env:USERPROFILE\.vite-plus\bin\tsc.cmd"
+          Get-ChildItem $vpBin
+          $shimPath = if ($IsWindows) { Join-Path $vpBin "tsc.cmd" } else { Join-Path $vpBin "tsc" }
           if (Test-Path $shimPath) {
             Write-Error "tsc shim file still exists at $shimPath"
             exit 1
@@ -444,14 +448,16 @@ jobs:
           fi
 
       - name: Test upgrade (powershell)
-        if: ${{ matrix.os == 'windows-latest' }}
+        if: ${{ matrix.os != 'namespace-profile-linux-x64-default' }}
         shell: pwsh
         run: |
-          Get-ChildItem "$env:USERPROFILE\.vite-plus\"
+          $vpHome = Join-Path $HOME ".vite-plus"
+          . (Join-Path $vpHome 'env.ps1')
+          Get-ChildItem $vpHome
 
           # Helper to read the installed CLI version from package.json
           function Get-CliVersion {
-            node -p "require(require('path').resolve(process.env.USERPROFILE, '.vite-plus', 'current', 'node_modules', 'vite-plus', 'package.json')).version"
+            node -p "require(require('path').resolve(process.env.USERPROFILE || process.env.HOME, '.vite-plus', 'current', 'node_modules', 'vite-plus', 'package.json')).version"
           }
 
           # Save initial (dev build) version
@@ -466,7 +472,7 @@ jobs:
           vp --version
           vp env doctor
 
-          Get-ChildItem "$env:USERPROFILE\.vite-plus\"
+          Get-ChildItem $vpHome
 
           # Verify version changed after update
           $updatedVersion = Get-CliVersion
@@ -552,20 +558,28 @@ jobs:
           vp --version
 
       - name: Test implode (powershell)
-        if: ${{ matrix.os == 'windows-latest' }}
+        if: ${{ matrix.os != 'namespace-profile-linux-x64-default' }}
         shell: pwsh
         run: |
-          # Retry — Windows file locks can cause transient "Access is denied" errors
-          foreach ($i in 1..3) {
-            vp implode --yes
-            if ($LASTEXITCODE -eq 0) { break }
-            Write-Host "Retry $i`: vp implode failed, waiting 5s..."
+          $vpHome = Join-Path $HOME ".vite-plus"
+          . (Join-Path $vpHome 'env.ps1')
+
+          if ($IsWindows) {
+            # Retry — Windows file locks can cause transient "Access is denied" errors
+            foreach ($i in 1..3) {
+              vp implode --yes
+              if ($LASTEXITCODE -eq 0) { break }
+              Write-Host "Retry $i`: vp implode failed, waiting 5s..."
+              Start-Sleep -Seconds 5
+            }
             Start-Sleep -Seconds 5
+          } else {
+            vp implode --yes
           }
-          Start-Sleep -Seconds 5
-          dir "$env:USERPROFILE\"
-          if (Test-Path "$env:USERPROFILE\.vite-plus") {
-            Write-Error "~/.vite-plus still exists after implode"
+
+          Get-ChildItem $HOME
+          if (Test-Path $vpHome) {
+            Write-Error "$vpHome still exists after implode"
             exit 1
           }
           pnpm bootstrap-cli:ci
diff --git a/crates/vite_global_cli/src/commands/env/setup.rs b/crates/vite_global_cli/src/commands/env/setup.rs
index 1748a9b8fd..6d4c48a1d4 100644
--- a/crates/vite_global_cli/src/commands/env/setup.rs
+++ b/crates/vite_global_cli/src/commands/env/setup.rs
@@ -641,10 +641,11 @@ if ($env:Path -split ';' -notcontains $__vp_bin) {
 function vp {
     if ($args.Count -ge 2 -and $args[0] -eq "env" -and $args[1] -eq "use") {
         if ($args -contains "-h" -or $args -contains "--help") {
-            & (Join-Path $__vp_bin "vp.exe") @args; return
+            & (Join-Path $__vp_bin "vp") @args; return
         }
         $env:VP_ENV_USE_EVAL_ENABLE = "1"
-        $output = & (Join-Path $__vp_bin "vp.exe") @args 2>&1 | ForEach-Object {
+        $env:VP_SHELL_PWSH = "1"
+        $output = & (Join-Path $__vp_bin "vp") @args 2>&1 | ForEach-Object {
             if ($_ -is [System.Management.Automation.ErrorRecord]) {
                 Write-Host $_.Exception.Message
             } else {
@@ -652,17 +653,18 @@ function vp {
             }
         }
         Remove-Item Env:VP_ENV_USE_EVAL_ENABLE -ErrorAction SilentlyContinue
+        Remove-Item Env:VP_SHELL_PWSH -ErrorAction SilentlyContinue
         if ($LASTEXITCODE -eq 0 -and $output) {
             Invoke-Expression ($output -join "`n")
         }
     } else {
-        & (Join-Path $__vp_bin "vp.exe") @args
+        & (Join-Path $__vp_bin "vp") @args
     }
 }
 
 # Dynamic shell completion for PowerShell
 $env:VP_COMPLETE = "powershell"
-& (Join-Path $__vp_bin "vp.exe") | Out-String | Invoke-Expression
+& (Join-Path $__vp_bin "vp") | Out-String | Invoke-Expression
 Remove-Item Env:\VP_COMPLETE -ErrorAction SilentlyContinue
 
 $__vpr_comp = {
@@ -674,7 +676,7 @@ $__vpr_comp = {
     $args = $args -replace '^(vpr\.exe|vpr)\b', 'vp run'
     if ($wordToComplete -eq "") { $args += " ''" }
     $results = Invoke-Expression @"
-& (Join-Path $__vp_bin 'vp.exe') -- $args
+& (Join-Path $__vp_bin 'vp') -- $args
 "@;
     if ($prev) { $env:VP_COMPLETE = $prev } else { Remove-Item Env:\VP_COMPLETE }
     $results | ForEach-Object {
diff --git a/crates/vite_global_cli/src/commands/env/use.rs b/crates/vite_global_cli/src/commands/env/use.rs
index 27ee6dc819..9bf51fef0b 100644
--- a/crates/vite_global_cli/src/commands/env/use.rs
+++ b/crates/vite_global_cli/src/commands/env/use.rs
@@ -36,7 +36,7 @@ fn detect_shell() -> Shell {
         Shell::Fish
     } else if config.vp_shell_nu {
         Shell::NuShell
-    } else if cfg!(windows) && config.ps_module_path.is_some() {
+    } else if config.vp_shell_pwsh {
         Shell::PowerShell
     } else if cfg!(windows) {
         Shell::Cmd
@@ -178,15 +178,12 @@ mod tests {
     use super::*;
 
     #[test]
-    fn test_detect_shell_posix_even_with_psmodulepath() {
+    fn test_detect_shell_pwsh() {
         let _guard = vite_shared::EnvConfig::test_guard(vite_shared::EnvConfig {
-            ps_module_path: Some("/some/path".into()),
+            vp_shell_pwsh: true,
             ..vite_shared::EnvConfig::for_test()
         });
         let shell = detect_shell();
-        #[cfg(not(windows))]
-        assert!(matches!(shell, Shell::Posix));
-        #[cfg(windows)]
         assert!(matches!(shell, Shell::PowerShell));
     }
 
diff --git a/crates/vite_shared/src/env_config.rs b/crates/vite_shared/src/env_config.rs
index 6818058c5b..841e2b4b14 100644
--- a/crates/vite_shared/src/env_config.rs
+++ b/crates/vite_shared/src/env_config.rs
@@ -135,6 +135,11 @@ pub struct EnvConfig {
     ///
     /// Env: `VP_SHELL_NU`
     pub vp_shell_nu: bool,
+
+    /// Explicit PowerShell eval signal set by the `env.ps1` wrapper.
+    ///
+    /// Env: `VP_SHELL_PWSH`
+    pub vp_shell_pwsh: bool,
 }
 
 impl EnvConfig {
@@ -166,6 +171,7 @@ impl EnvConfig {
             ps_module_path: std::env::var("PSModulePath").ok(),
             nu_version: std::env::var("NU_VERSION").ok(),
             vp_shell_nu: std::env::var(env_vars::VP_SHELL_NU).is_ok(),
+            vp_shell_pwsh: std::env::var(env_vars::VP_SHELL_PWSH).is_ok(),
         }
     }
 
@@ -250,6 +256,7 @@ impl EnvConfig {
             ps_module_path: None,
             nu_version: None,
             vp_shell_nu: false,
+            vp_shell_pwsh: false,
         }
     }
 
diff --git a/crates/vite_shared/src/env_vars.rs b/crates/vite_shared/src/env_vars.rs
index 5618e416fc..55badcfdab 100644
--- a/crates/vite_shared/src/env_vars.rs
+++ b/crates/vite_shared/src/env_vars.rs
@@ -43,6 +43,9 @@ pub const VP_ENV_USE_EVAL_ENABLE: &str = "VP_ENV_USE_EVAL_ENABLE";
 /// bash/zsh is launched from a Nushell session.
 pub const VP_SHELL_NU: &str = "VP_SHELL_NU";
 
+/// Explicit signal set by the PowerShell wrapper to indicate PowerShell eval context.
+pub const VP_SHELL_PWSH: &str = "VP_SHELL_PWSH";
+
 /// Filter for update task types.
 pub const VITE_UPDATE_TASK_TYPES: &str = "VITE_UPDATE_TASK_TYPES";