# Prepare Windows VMs in VMware for conversion to HPE Morpheus

Before you convert a Windows virtual machine from VMware to HPE Morpheus VM Essentials, prepare the VM so that the converted instance can start successfully and communicate on the network.

Note

VMs running on the following guest operating systems can be converted to HPE Morpheus VM Essentials instances:

- Windows Server 2025

- Windows Server 2022

- Windows Server 2019

- Windows Server 2016

## Procedure

If the source Windows VM running in VMware has more than four disks, prepare the VM before conversion by installing the VirtIO SCSI controller (vioscsi) and network adapter (netkvm) drivers to ensure that the converted HPE Morpheus VM Essentials instance can start and operate correctly.

To install the drivers, follow these steps:

1. Perform the following steps for both of the driver files (vioscsi.inf and netkvm.inf):

   1. Go to Run and execute hdwwiz.exe to open the Add New Hardware wizard.

   2. Select Install the hardware that I manually select from a list.

   3. Select Show All Devices as the hardware type.

   4. Click Have Disk.

   5. Select the driver file, and then click OK.

   6. Click Next to continue, click Next again to start installing the driver, and then click Finish when the installation completes.

2. From Windows Explorer, right-click the vioscsi.inf file, and then click Install.

3. From Windows Explorer, right-click the netkvm.inf file, and then click Install.

4. To add the VirtIO SCSI controller to the CriticalDeviceDatabase, add the following registry key to the Windows registry hive:

   [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\CriticalDeviceDatabase\PCI#VEN_1AF4 & DEV_1004 & SUBSYS_00081AF4 & REV_00] "ClassGUID" = "{4D36E97B-E325-11CE-BFC1-08002BE10318}" "Service" = "vioscsi"

   Note

   - If the CriticalDeviceDatabase folder does not already exist, create one.

   - "ClassGUID" and "Service" are string values.

5. Perform a backup operation for the modified source VMs.

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