corporate version of Windows 7 Ultimate no longer genuine after P2V migration

corporate version of Windows 7 Ultimate no longer genuine after P2V migration

corporate version of Windows 7 Ultimate on my corporate laptop no longer
genuine after P2V migration...
I tried slui utility but it did not help. It asks me to either enter / buy
a new key or contact Dell representatives.
I have a corporate Win 7 Ultimate. I am afraid the Win could be bound to
the hardware (Dell Latitude 6420).
After P2V conversion there is a label on my desktop in the bottom right
corner saying:
This copy of Windows is not genuine
Any ideas if a change to the VM / its configuration could help (I am using
VMWare Player 5.0.2 build-1031769 on Fedora 19 x64 Linux)?
Something to do inside the VM in Win to solve the problem?
EDIT: here is the problem:
Error Code: 0xC004F057 Error Text: The Software Licensing Service reported
that the computer BIOS is missing a required license.
(found out thanks to MS Toolkit/EZActivator)