updating fix using BIOS

Author: batamig

articles/defender-for-iot/organizations/appliance-catalog/virtual-sensor-vmware.md

@@ -1,7 +1,7 @@
 ---
 title: OT sensor VM (VMware ESXi) - Microsoft Defender for IoT
 description: Learn about deploying a Microsoft Defender for IoT OT sensor as a virtual appliance using VMware ESXi.
-ms.date: 04/24/2022
+ms.date: 08/20/2023
 ms.topic: reference
 ---
 
@@ -63,6 +63,8 @@ This procedure describes how to create a virtual machine by using ESXi.
 
 1. For **CD/DVD Drive 1**, select **Datastore ISO file** and choose the ISO file that you uploaded earlier.
 
+1. In your VM options, change your boot options from **Firmware** to **BIOS**. Make sure that you're not booting from EFI.
+
 1. Select **Next** > **Finish**.
 
 ## Software installation