After you install Windows Live OneCare on a Windows Vista-based computer, the Security Center program that is included in Windows Vista does not detect that Windows Live OneCare is installed and active.

This problem occurs when Windows Management Instrumentation (WMI) is not working correctly on a Windows Vista-based computer.

To resolve this problem, you must scan and repair the WMI Repository Database on the computer. To do this, follow these steps:

1. Click Start
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   , type cmd in the Start Search box, and then press ENTER.
2. At the command prompt, type the following commands. Pressing ENTER after each command line:
   winmgmt /verifyrepository
   winmgmt /salvagerepository
3. Restart the computer.