There are blocking issues for the physical-to-virtual conversion, there is no BCD boot…

There are two traditional ways to move physical machines to Hyper-V virtual machine using Microsoft Tools.

1- Microsoft Virtual Machine Converter

When you try to convert a Windows server 2012 for example from physical to a VM, you might get the following error:

Microsoft Virtual machine Converter encountered an error while attempting to convert the virtual machine

There are blocking issues for the physical-to-virtual conversion, there is no BCD boot device found in the source machine, noticing that conversion of an EFI boot machine is currently not supported.

2- Disk2VHD

Another tool is Disk to VHD and if you try to convert the physical machine using Disk2VHD tool, then try to boot the VHD disk in Hyper-V manager you get the following error in Hyper-V Manager:

Boot Failed.  EFI SCSI Device

Boot Failed.  EFI Network

No Operating System was loaded.  Press a key to retry boot sequence



Use Disk2VHD to convert the physical machine to a disk.  Before you do that map the boot partition on the source machine to a drive so when you run the Disk2VHD that partition will get captured.

To do that, go to command line and type:

mountvol V: /S

That will mount the boot partition to a drive called V: drive (you could choose any other available drive if you want).  Now run Disk2VHD.  That will convert the server’s partitions and disks including the boot to VHD.  Copy to the Hyper-V machine and boot the new VM with that disk.


The ACE doesn’t exist on the object

When attempting to remove permissions from Exchange server mailbox using Exchange Management Shell… Powershell

Remove-MailboxPermission -identity….

You get the following error

WARNING: Can’t remove the access control entry on the object… because the ACE doesn’t exist on the object.

There is abundance of articles on the Internet on to deal with this… mostly confusing and convoluted.

The easiest way we’ve succeeded in resolving this issue is be removing the mailbox from the user and adding it again.  That doesn’t mean you will delete anything..

In Exchange 2013 Admin Center if you go to that user under Recipient and then Mailboxes then disable the user (that will remove the mailbox from the user profile).  You can then go back to and select “connect a mailbox” and connect that mailbox back to the same user account.  This way you will have reset permissions on the mailbox to default.   Issue was resolved for us this easy way.