diff --git a/acceptance/acceptance_test.go b/acceptance/acceptance_test.go
index 89d1598553..72777ea9f5 100644
--- a/acceptance/acceptance_test.go
+++ b/acceptance/acceptance_test.go
@@ -72,7 +72,11 @@ func testAccept(t *testing.T, InprocessMode bool, singleTest string) int {
 	require.NoError(t, err)
 
 	// Download terraform and provider and create config; this also creates build directory.
-	RunCommand(t, []string{filepath.Join(cwd, "install_terraform.py")}, ".")
+	if runtime.GOOS == "windows" {
+		RunCommand(t, []string{"python", filepath.Join(cwd, "install_terraform.py")}, ".")
+	} else {
+		RunCommand(t, []string{filepath.Join(cwd, "install_terraform.py")}, ".")
+	}
 
 	buildDir := filepath.Join(cwd, "build")
 	coverDir := os.Getenv("CLI_GOCOVERDIR")
diff --git a/acceptance/install_terraform.py b/acceptance/install_terraform.py
index 8a5a340e14..74beb436af 100755
--- a/acceptance/install_terraform.py
+++ b/acceptance/install_terraform.py
@@ -17,14 +17,10 @@
 
 os_name = platform.system().lower()
 
-current_arch = platform.machine().lower()
-arch_mapping = {
-    "x86_64": "amd64",
-    "amd64": "amd64",
-    "arm64": "arm64",
-    "aarch64": "arm64",
-}
-arch = arch_mapping.get(current_arch, current_arch)
+arch = platform.machine().lower()
+if os_name == 'windows' and arch not in ('386', 'amd64'):
+    # terraform 1.5.5 only has builds for these two.
+    arch = 'amd64'
 
 terraform_version = "1.5.5"
 terraform_file = f"terraform_{terraform_version}_{os_name}_{arch}.zip"