diff --git a/provisioner/powershell/provisioner_test.go b/provisioner/powershell/provisioner_test.go
index 06fe39ef7..7e739016c 100644
--- a/provisioner/powershell/provisioner_test.go
+++ b/provisioner/powershell/provisioner_test.go
@@ -5,7 +5,6 @@ import (
 	"errors"
 	"fmt"
 	"io/ioutil"
-	//"log"
 	"os"
 	"regexp"
 	"strings"
@@ -30,6 +29,7 @@ func TestProvisionerPrepare_extractScript(t *testing.T) {
 	p := new(Provisioner)
 	_ = p.Prepare(config)
 	file, err := extractScript(p)
+	defer os.Remove(file)
 	if err != nil {
 		t.Fatalf("Should not be error: %s", err)
 	}
@@ -177,6 +177,7 @@ func TestProvisionerPrepare_Script(t *testing.T) {
 		t.Fatalf("error tempfile: %s", err)
 	}
 	defer os.Remove(tf.Name())
+	defer tf.Close()
 
 	config["script"] = tf.Name()
 	p = new(Provisioner)
@@ -203,6 +204,7 @@ func TestProvisionerPrepare_ScriptAndInline(t *testing.T) {
 		t.Fatalf("error tempfile: %s", err)
 	}
 	defer os.Remove(tf.Name())
+	defer tf.Close()
 
 	config["inline"] = []interface{}{"foo"}
 	config["script"] = tf.Name()
@@ -222,6 +224,7 @@ func TestProvisionerPrepare_ScriptAndScripts(t *testing.T) {
 		t.Fatalf("error tempfile: %s", err)
 	}
 	defer os.Remove(tf.Name())
+	defer tf.Close()
 
 	config["inline"] = []interface{}{"foo"}
 	config["scripts"] = []string{tf.Name()}
@@ -248,6 +251,7 @@ func TestProvisionerPrepare_Scripts(t *testing.T) {
 		t.Fatalf("error tempfile: %s", err)
 	}
 	defer os.Remove(tf.Name())
+	defer tf.Close()
 
 	config["scripts"] = []string{tf.Name()}
 	p = new(Provisioner)
@@ -444,6 +448,8 @@ func TestProvisionerProvision_Inline(t *testing.T) {
 func TestProvisionerProvision_Scripts(t *testing.T) {
 	tempFile, _ := ioutil.TempFile("", "packer")
 	defer os.Remove(tempFile.Name())
+	defer tempFile.Close()
+
 	config := testConfig()
 	delete(config, "inline")
 	config["scripts"] = []string{tempFile.Name()}
@@ -473,6 +479,8 @@ func TestProvisionerProvision_ScriptsWithEnvVars(t *testing.T) {
 	config := testConfig()
 	ui := testUi()
 	defer os.Remove(tempFile.Name())
+	defer tempFile.Close()
+
 	delete(config, "inline")
 
 	config["scripts"] = []string{tempFile.Name()}