Sometimes, unregistering and re-registering WMIUTILS.DLL file will fix this issue.
1. Click the Start button, and then click Run.
2. In the Run dialog box, type the following text:
regsvr32 /u WMIUTILS.DLL
3. Click OK.
4. Restart the computer.
5. Click the Start button, and then click Run.
6. In the Run dialog box, type the following text:
7. Click OK.
8. Restart the computer.
The problem is that your Windows Security Center does not recognize the Norton Internet Security. There is nothing to worry about this, as long as Norton program shows GREEN check mark in the system tray, you don't have to worry about the protection for your computer. You can ignore this warning from the Security Center. You can also try uninstalling Norton program using the Norton Removal Tool and then reinstall!http://us.norton.com/support/kb/web_view.jsp?wv_type=public_web&docurl=20080710133834EN&ln=en_US