diff --git a/bin/windows/create_completion_files.ps1 b/bin/windows/create_completion_files.ps1
index e6579ca..57f0bfa 100644
--- a/bin/windows/create_completion_files.ps1
+++ b/bin/windows/create_completion_files.ps1
@@ -14,3 +14,6 @@ rustup completions powershell > (Join-Path $script_location "rustup_completion.p
 wezterm shell-completion --shell power-shell > (Join-Path $script_location "wezterm_completion.ps1")
 chezmoi completion powershell > (Join-Path $script_location "chezmoi_completion.ps1")
 
+# alias
+Set-Location $PSScriptRoot
+Get-ChildItem "../../extra_configs/completions" -File | Copy-Item -Destination $script_location
diff --git a/extra_configs/completions/.gitignore b/extra_configs/completions/.gitignore
new file mode 100644
index 0000000..eb537a5
--- /dev/null
+++ b/extra_configs/completions/.gitignore
@@ -0,0 +1 @@
+help_txt/
\ No newline at end of file
diff --git a/extra_configs/completions/tree_completion.ps1 b/extra_configs/completions/tree_completion.ps1
new file mode 100644
index 0000000..6d5c018
--- /dev/null
+++ b/extra_configs/completions/tree_completion.ps1
@@ -0,0 +1,26 @@
+# generate completion for tree.com
+# output help with UTF-8
+
+"tree", "tree.com" | Foreach-Object {
+    Register-ArgumentCompleter -Native -CommandName $_ -ScriptBlock {
+        param($wordToComplete, $commandAst, $cursorPosition)
+
+        $commands = @{
+            cmd = "/F"; desc = "Display the names of the files in each folder."
+        }, @{
+            cmd = "/A"; desc = "Use ASCII instead of extended characters."
+        }
+
+        # [string[]]$list = if ([string]$wordToComplete -eq "") {
+        #     $commands
+        # } else {
+        #     $commands | Where-Object {
+        #         $_.cmd -match $wordToComplete 
+        #     }
+        # }
+
+        $commands | ForEach-Object {
+            [System.Management.Automation.CompletionResult]::new($_.cmd, $_.cmd, 'ParameterValue', $_.desc)
+        }
+    }
+}