Guest OS reads different when power on in vCenter

I have a strange issue on a customers VMware host. I have a guest OS (Windows SBS 2011) which should read Windows Server 2008 R2. It does wen the guest is powered off but when the guest is powered on it reads Windows 7 64 Bit. Everything seems to work fine.

2 Questions.

1 Should I be concerned?
2 Is there a reason it might do this.

Original ESXi 4.1
Install new (not update) ESXi 5.1 U1 with VMFS 5 now. Wiped the datasore and reformatted VMFS 5 then moved the VM's back.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
I would think VMware Tools has an influence over this.

1. I would not be concerned as long as it states Windows OS which is 64 bit.

2. VMware Tools, and there is no SBS 2011 setting.

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So it reported correctly under 4.1, but it reports incorrectly under 5.1?
RickEpnetAuthor Commented:
I am not sure never noticed.
RickEpnetAuthor Commented:
hanccocka: I had the same thought but needed a second option I appreciate your help. Thanks!!
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