I was in the process of migrating several physical Windows 2008 Servers into a new VMware vSphere environment, and one of the machines kept failing at 96%.  There did not appear to be any issues with the server's hardware or operating system.  After researching the issue, I found the following VMware Knowledge Base article which detailed my problem and was able to help me resolve the issue: <a href="http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&amp;cmd=displayKC&amp;externalId=1037507">http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&amp;cmd=displayKC&amp;externalId=1037507</a>

It turns out the server had a recovery partition that was causing inaccurate BCD data post conversion.  Following the steps in the article's resolution resolved the issue.