V2V conversion using VMware Converter fails at 97% with error: Unable to find the system volume, reconfiguration is not possible

I tried to move a Windows 7 VM from ESXi to vSphere but as it neared completion the Converter stated that it had failed.

After a little search I found this from VMware


It described a long process of going through an OS repair mode on the original source machine and using BCDEDIT to reset the partition settings used during the boot process.

I didn’t go through the repair process but instead booted the source VM to run the three BCDEDIT commands that it lists. I was only getting success with the first one:

bcdedit /set {bootmgr} device partition=C:

and an error regarding syntax with the other two commands:

bcdedit /set {default} device partition=C:

bcdedit /set {default} osdevice partition=C:

In the end and out of curiosity I checked the destination VM because even though it had errorred, it had still completed the conversion and was listed as a powered off VM in the Virtual Infrastructure.

Strangely it powered on and worked as normal! I can only assume that the error was some kind of registration problem as the VM functions correctly and its’ partitions are listed correctly.


How to access the BIOS screen in a VM virtual machine

I find sometimes that the POST screen can pass too quickly which makes it pretty impossible to to access the BIOS.

  • If you are using vSphere or ESXi connect to the server using the vSphere or VI client

  • Right click on the VM that you need to access the BIOS of

  • Select Edit Settings then Options

  • Click on Boot Options and in the right hand pane tick the box under the Force BIOS setup field



  • Restart the VM and the BIOS will automatically load. This will only happen once so if you need to access it multiple times then you will need to manually set it each time

How to update VMware ESXi 3.5 servers with the latest updates and patches

Unlike ESX 3.5 where downloading the latest version to CD/DVD and booting would maintain all settings and VM’s, ESXi prevents this. If you boot with the latest version of ESXi it will fresh install ESXi wiping out any VM’s that you may have.

There is an update option within the VI client when you install it initially to install the VMware Infrastructure Update option. This often gets missed as it is not checked by default. If it is installed on your PC it should appear in Start – Programs – Vmware – VMware Infrastructure Update

If it is not there then you will need to remove your VI client and reinstall it, enabling the VMware Infrastructure Update option during the installation.

To update an ESXi server select Start – Programs – Vmware – VMware Infrastructure Update

Select the ‘Hosts’ tab and select the ESXi server that you would like to update


Click on the Updates tab and click on the ‘Check Now’ button


Click on ‘Install Updates’ to install the listed updates


Updates are downloaded and installed


During the update installation you will be prompted to provide authentication credentials


Installation should now continue