Server Fault is a question and answer site for system and network administrators. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I have windows datacenter on my root partition, that installed windows update.

I have enterprize on my children, they will not update. For them to update should they be datacenter too, or can you not install windows updates on virtual machines?

root partition is not activiated.

Also, have no roles or features installed on my children.


Found a solution, gathering the updates manually from

But would still like to sort the reason why the it didn't check for updates properly

The problem is outdated driver on the virtual machine bus virtual adopter, when you in stall windows server 20008 service pack 1 the driver gets updated and you can use windows update to download and install your updates automatically. You can find sp1 on the catalog link above.

Thanks for the help

share|improve this question
Are you talking about WSUS or Windows update? – t1nt1n Jun 7 '12 at 8:58
What is WSUS? When server manager comes up I go to "confirgure update" in the security section, so i presumed its windows update – ELSheepO Jun 7 '12 at 9:01
Do they have Internet connectivity? How is your networking configured? – Massimo Jun 7 '12 at 9:02
Internet is up and running, IPv4 enabled, IPv6 disabled. – ELSheepO Jun 7 '12 at 9:03
@ELSheepO How have you configred the updates? To Download and install, Just download etc? What happens when you go to ? Also what OS's are you running on the guest? – t1nt1n Jun 7 '12 at 9:41
up vote 3 down vote accepted

Virtual Machines should be able to download updates just fine. Remember the VM is a totally different "computer" just running on top of a host machine.

That being said I found a similar problem posted on Experts Exchange and the resolution there had to do with TCP Offloading on the NIC:

Cracked it!

I had to disable offloading. It's an HP NIC, but from what I can's basically a Broadcom board branded HP. There have been problems with Broadcom Teaming with VMs.

I'm going to slowly enable Large Send Offload 1 & 2, TCP and UDP Checksum Offload, and Large Receive Offload on the NICs and see which ones cause the problem. I'm suspecting LRO is the only one that needs disabled, but since it's working, I'm going to slowly back it up to a non-working point.

I wonder if we still get billed from MS for the "fix"? :p

Some of the places I found information:

I would check out your network settings and see if there is any issue along those lines. Out of curiosity, what brand server is it?

share|improve this answer
Its a Dell PowerEdge, with intel Gigabit NIC – ELSheepO Jun 7 '12 at 13:50
Do you know if its on the virtual network adapters, the adapters on the VM or the phyiscal adapter, that those settings need to be changed? I can't see the answer on Experts Exchange cos I can't pay for it. Thanks – ELSheepO Jun 8 '12 at 7:41
The TCP Offload settings would be on you're physical host adapter, so configured on the host partition. I see you posted an answer, but you never really resolved the original problem, maybe there was an updated network driver for your host that was contributing? – Brent Pabst Jun 8 '12 at 12:35
Would that not mean I wouldn't have been able to do the updates on the host? Though you could be right, as I think the service pack was installed when I was installing the OS. – ELSheepO Jun 8 '12 at 13:35
I'm not exactly sure what the problem is, but from the post I saw over a EE, it looks like there were issues with just the guests with specific hardware that had TCP offload capabilities. Sounds like it might be a driver-related issue. – Brent Pabst Jun 8 '12 at 13:55

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.