diff --git a/pkg/multicloud/google/instance.go b/pkg/multicloud/google/instance.go
index 9cb577f459..bae147c7a5 100644
--- a/pkg/multicloud/google/instance.go
+++ b/pkg/multicloud/google/instance.go
@@ -290,10 +290,8 @@ func (instance *SInstance) GetOsType() cloudprovider.TOsType {
 	for _, disk := range instance.Disks {
 		if disk.Index == 0 {
 			for _, license := range disk.Licenses {
-				if strings.Index(strings.ToLower(license), "windows") < 0 {
+				if strings.Contains(strings.ToLower(license), "windows") {
 					return cloudprovider.OsTypeWindows
-				} else {
-					return cloudprovider.OsTypeLinux
 				}
 			}
 		}
diff --git a/pkg/multicloud/google/instancenic.go b/pkg/multicloud/google/instancenic.go
index ae87474486..572251fbdf 100644
--- a/pkg/multicloud/google/instancenic.go
+++ b/pkg/multicloud/google/instancenic.go
@@ -45,7 +45,7 @@ func (nic *SNetworkInterface) GetIP() string {
 
 func (nic *SNetworkInterface) GetMAC() string {
 	ip, _ := netutils.NewIPV4Addr(nic.NetworkIP)
-	return ip.ToMac("00:16:")
+	return ip.ToMac("42:01:")
 }
 
 func (nic *SNetworkInterface) GetDriver() string {