Troubleshooting windows 2008 r2 sysprep – A fatal error occurred while trying to sysprep the machine

Today I have a problem when I want to create new image using the existing image(old image) in citrix xen server.

When I run sysprep, I found an error message “A Fatal error occurred trying to sysprep the machine”

To solved this problem, I do a this workaround :

  • Change registry key HKEY_LOCAL_MACHINE\SYSTEM\Setup\Status\SysprepStatus to 7

  • Change HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\SoftwareProtectionPlatform\SkipRearm to 1
  • And then Delete the folder Panther.

  • And then run sysprep again.

Source :

http://social.technet.microsoft.com/Forums/windows/en-US/425bd101-8a87-488c-b2e2-9f2f8113a0d9/sysprep-fatal-error-occurred-while-trying-to-sysprep-the-machine (look at for Riffing answer)

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