I've been running Windows 7 images on ESXi 4.1 hosts in our VCL without 
problem. When I updated several of those Windows 7 images to service pack 1, 
I'm seeing an issue where more times than not, the VM will hang at the Windows 
Starting screen for up to 30 minutes. If I revert back to the pre-SP1 image, it 
boots just fine.

What's maddening is that it's not consistent. Some times it will boot normally, 
but many times there's this long hang while booting, which of course causes the 
reservation to fail. This happens across different VMs running on different 
ESXi hosts. The common factor is Windows 7 SP1.

Has anyone else seen this?

Mike Waldron
Systems Specialist
ITS Research Computing
University of North Carolina at Chapel Hill
CB #3420, ITS Manning, Rm 2509

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