”A fatal error occurred while trying to sysprep the machine.”
then you should check your Setupact.log file and see if you can find the following line:
0x80070020 / ERROR_SHARING_VIOLATION
If this line is present in the log file, then sysprep is failing because MSDTC is trying to reset its log but sysprep has locked the log for exclusive access. The only solution for this at present is to contact Microsoft Customer Support Services (CSS) for a hotfix.
Mitch Tulloch was lead author for the Windows Vista Resource Kit from Microsoft Press, which is the book for IT pros who want to deploy, maintain and support Windows Vista in mid- and large-sized network environments. Mitch was also the author of Introducing Windows Server 2008 and technical project lead for the Microsoft Office Communications Server 2007 Resource Kit, both books also from Microsoft Press. For more information on these and other books by Mitch, see www.mtit.com.