diff --git a/HMCLauncher/HMCL/java-download.ps1 b/HMCLauncher/HMCL/java-download.ps1
new file mode 100644
index 000000000..5c5a52b9c
--- /dev/null
+++ b/HMCLauncher/HMCL/java-download.ps1
@@ -0,0 +1,117 @@
+param(
+    [string]$JavaDir
+)
+
+$url = 'https://aka.ms/download-jdk/microsoft-jdk-17-windows-x64.zip'
+$chinese = (Get-WinSystemLocale).Name -eq 'zh-CN'
+
+do {
+    $tempFileName = "hmcl-java-$(Get-Random).zip"
+    $script:tempFile = Join-Path ([System.IO.Path]::GetTempPath()) $tempFileName
+} while (Test-Path $script:tempFile)
+
+echo $script:tempFile
+
+[Reflection.Assembly]::LoadWithPartialName("System.Windows.Forms")
+
+$result = if ($chinese) {
+    [System.Windows.Forms.MessageBox]::Show('HMCL 需要 Java 运行时环境才能正常运行，是否自动下载安装 Java？', '', [System.Windows.Forms.MessageBoxButtons]::YesNo)
+} else {
+    [System.Windows.Forms.MessageBox]::Show('Running HMCL requires a Java runtime environment. Do you want to download and install Java automatically?', '', [System.Windows.Forms.MessageBoxButtons]::YesNo)
+}
+
+if ($result -ne [System.Windows.Forms.DialogResult]::Yes) {
+    exit 0
+}
+
+$form = New-Object System.Windows.Forms.Form
+$form.AutoSize = $true
+$form.AutoSizeMode = [System.Windows.Forms.AutoSizeMode]::GrowAndShrink
+if ($chinese) {
+    $form.Text = '正在下载 Java'
+} else {
+    $form.Text = 'Downloading Java'
+}
+
+$tip = New-Object System.Windows.Forms.Label
+if ($chinese) {
+    $tip.Text = '正在下载 Java 中'
+} else {
+    $tip.Text = 'Downloading Java'
+}
+
+$layout = New-Object System.Windows.Forms.FlowLayoutPanel
+$layout.AutoSize = $true
+$layout.FlowDirection = [System.Windows.Forms.FlowDirection]::TopDown
+$layout.AutoSizeMode = [System.Windows.Forms.AutoSizeMode]::GrowAndShrink
+
+$progressBar = New-Object System.Windows.Forms.ProgressBar
+$progressBar.Maximum = 100
+
+$label = New-Object System.Windows.Forms.Label
+
+$box = New-Object System.Windows.Forms.FlowLayoutPanel
+$box.AutoSize = $true
+$box.FlowDirection = [System.Windows.Forms.FlowDirection]::LeftToRight
+$box.AutoSizeMode = [System.Windows.Forms.AutoSizeMode]::GrowAndShrink
+$box.Anchor = [System.Windows.Forms.AnchorStyles]::Right
+$box.Controls.Add($progressBar)
+$box.Controls.Add($label)
+
+$cancelButton = New-Object System.Windows.Forms.Button
+$cancelButton.DialogResult = [System.Windows.Forms.DialogResult]::Cancel
+$cancelButton.Anchor = [System.Windows.Forms.AnchorStyles]::Right
+if ($chinese) {
+    $cancelButton.Text = '取消'
+} else {
+    $cancelButton.Text = 'Cancel'
+}
+
+$layout.Controls.Add($tip)
+$layout.Controls.Add($box)
+#$layout.Controls.Add($progressBar)
+$layout.Controls.Add($cancelButton)
+
+$form.Controls.Add($layout)
+#$form.Controls.Add($progressBar)
+#$form.Controls.Add($cancelButton)
+
+[System.Net.DownloadProgressChangedEventHandler]$progressChangedEventHandler = {
+    param($sender, [System.Net.DownloadProgressChangedEventArgs]$EventArgs)
+    $bytesReceived = $EventArgs.BytesReceived
+    $totalBytes = $EventArgs.TotalBytesToReceive
+
+    $percentage = ([double]$bytesReceived)/([double]$totalBytes) * 100
+
+    $progressBar.Value = [int][System.Math]::Truncate($percentage)
+    #$tooltip.SetToolTip($progressBar, [string]::Format("{0:0.00}%", $percentage))
+    $label.Text = [string]::Format("{0:0.00}%", $percentage)
+}
+
+[System.ComponentModel.AsyncCompletedEventHandler]$downloadFileCompletedEventHandler = {
+    $form.DialogResult = [System.Windows.Forms.DialogResult]::OK
+}
+
+$client = New-Object System.Net.WebClient
+$client.add_DownloadProgressChanged($progressChangedEventHandler)
+$client.add_DownloadFileCompleted($downloadFileCompletedEventHandler)
+
+$client.DownloadFileAsync($url, $script:tempFile)
+
+$result = $form.ShowDialog()
+$form.Dispose()
+
+if ($result -eq [System.Windows.Forms.DialogResult]::OK) {
+    $null = New-Item -Type Directory -Force $JavaDir
+    $app = New-Object -ComObject Shell.Application
+    $items = $app.NameSpace($script:tempFile).items()
+    foreach ($item in $items) {
+        $app.NameSpace($JavaDir).copyHere($item)
+    }
+} elseif ($result -eq [System.Windows.Forms.DialogResult]::Cancel) {
+    $client.CancelAsync()
+}
+
+if ([System.IO.File]::Exists($script:tempFile)) {
+    [System.IO.File]::Delete($script:tempFile)
+}
\ No newline at end of file