Hi Guys. 

We setup a active directory in our organization. Added client systems(Windows 7 and Windows 8) to the Domain. Domain users are accessing the system with standard users permission. I don't want to give Administrator permissions. But user should able to Disable and Enable network Adapter without giving the administrator permissions. Please suggest . 

Thanks in advance for the help :)

Hi,

According to your description, my understanding is that you want the standard user has the permission to disable/enable network adapter.

I recommend you to implement this function by group policy:
User configuration - Administrative Templates Network - Network connections

Enable this policy:
Ability to enable/disable a LAN Connection

Besides, you may consider of joining users to Network Configuration Operators Group, detailed information you may reference:
A Description of the Network Configuration Operators Group
http://support.microsoft.com/en-us/kb/297938

Best Regards,
Eve Wang