Question: how to enable ntp server in windows 2008 r2?
Answer: Click Start, click Run, type regedit, and then click OK.
Locate and then click the following registry subkey: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet. \Services\W32Time\Parameters\Type.
In the pane on the right, right-click Type, and then click Modify.
In Edit Value, type NTP in the Value data box, and then click OK.