SCM Rollback

Hi,

What is the best way to rollback like "WS2008R2SP1 Domain Controller Security Compliance" policy settings?

There is a lot of settings those have to set to default

Is the best way to

Delete the HKLM\Software\Policies\Microsoft Key (looks like a folder).

Delete the HKCU\Software\Policies\Microsoft Key.

Delete the HKCU\Software\Microsoft\Windows\CurrentVersion\Group Policy Objects Key.

Delete the HKCU\Software\Microsoft\Windows\CurrentVersion\Policiess Key.

And apply only "Delfault Domain "Policy" and "Default Domain Controller Policy"

Or

http://blogs.technet.com/b/askds/archive/2008/05/28/default-security-templates-in-windows-2008.aspx

Way

Or

Something else way?