diff --git a/release/kokoro/build_windows.cfg b/release/kokoro/build_windows.cfg
index 5a81152..7454eac 100644
--- a/release/kokoro/build_windows.cfg
+++ b/release/kokoro/build_windows.cfg
@@ -1,7 +1,7 @@
 # proto-file: //devtools/kokoro/config/proto/build.proto
 # proto-message: BuildConfig
 
-build_file: "cel-python/release/kokoro/presubmit_windows.ps1"
+build_file: "cel-python/release/kokoro/presubmit_windows.bat"
 timeout_mins: 30
 
 container_properties {
diff --git a/release/kokoro/presubmit_windows.ps1 b/release/kokoro/presubmit_windows.ps1
deleted file mode 100644
index 2097dba..0000000
--- a/release/kokoro/presubmit_windows.ps1
+++ /dev/null
@@ -1,49 +0,0 @@
-# PowerShell script for Windows Presubmit
-$ErrorActionPreference = 'Stop'
-
-Write-Host '--- Environment Info ---'
-Write-Host "Host Name: $env:COMPUTERNAME"
-Write-Host "User Name: $env:USERNAME"
-Write-Host "Current Directory: $(Get-Location)"
-
-# Change directory to the repository root
-Set-Location "$PSScriptRoot\..\.."
-Write-Host "New Directory: $(Get-Location)"
-
-$PYTHON_EXE = 'python'
-if (Get-Command 'python3.11' -ErrorAction SilentlyContinue) {
-    $PYTHON_EXE = 'python3.11'
-}
-else {
-    if (Test-Path 'C:\Python311\python.exe') {
-        $PYTHON_EXE = 'C:\Python311\python.exe'
-    }
-}
-
-Write-Host '--- Python Version ---'
-& $PYTHON_EXE --version
-
-# Ensure Bazel is available
-Write-Host '--- Bazel Version ---'
-& bazel version
-
-# Build all targets
-Write-Host '--- Bazel Build ---'
-& bazel build --config=windows //...
-
-if ($LASTEXITCODE -ne 0) {
-    Write-Host 'Build failed!'
-    exit 1
-}
-
-# Run all tests
-Write-Host '--- Bazel Test ---'
-& bazel test --config=windows --test_output=errors //...
-
-if ($LASTEXITCODE -ne 0) {
-    Write-Host 'Tests failed!'
-    exit 1
-}
-
-Write-Host '--- Success ---'
-Write-Host 'Build and tests passed successfully.'