Is there a way to disable the client PC usb ports or is there another way to do this im running server 2008 r2 std

Refer to this Microsoft article named "HOWTO: Use Group Policy to diable USB, CD-ROM, Floppy Disk and LS-120 drivers". Proceed like it is mentioned, create your group policy and link it. This posting is provided "AS IS" with no warranties or guarantees , and confers no rights. Microsoft Student Partner Microsoft Certified Professional Microsoft Certified Systems Administrator: Security Microsoft Certified Systems Engineer: Security Microsoft Certified Technology Specialist: Windows Server 2008 Active Directory, Configuration Microsoft Certified Technology Specialist: Windows Server 2008 Network Infrastructure, Configuration