How can I move the Active Directory log files?

Restart the domain controller (DC).

Press F8 at the Startup menu when the system displays the list of OSs.

Select Directory Services Restore Mode.

Select the appropriate installation, if more than one exists, and then log on as an administrator at the logon prompt.

Start a command prompt (Start, Run, cmd.exe).

Start the NTDS utility, ntdsutil.exe.

At the ntdsutil prompt, type "files" as shown below:

ntdsutil: files

At the file maintenance prompt, type the following:

file maintenance: move logs to [new location for file]

To view the log files, at the file maintenance prompt, type "info":

file maintenance: info 

Type "quit" (without the quotation marks) twice to return to a C prompt.

Restart the computer in Normal mode.