ESXi : Clone Windows 2008 R2

ESXi : Clone Windows 2008 R2

I ran into some issue recently when cloning an existing Windows 2008 R2 system, when manually using sysprep or using VMware to customise it I eventually ended up with the clone failing to boot with a C0000021C BSOD error.

The get around this I performed the following steps:

  1. Power off Source
  2. Change Windows 2008 R2 source type to Windows 2008 64-bit
  3. Clone VM
  4. Change source back to Windows 2008 R2 and power on
  5. Power on Clone allow to run sysprep
  6. Shutdown Clone
  7. Change clone to Windows 2008 R2

Don’t ask me why it works, it just does….