DavidR
5
The Vista Security Center like XP’s Windows Security Center is flaky with its WMI database becoming corrupt with monotonous regularity. You can try repairing it, see below.
See http://windowsxp.mvps.org/repairwmi.htm, this also mentions Vista.
Also see http://windowsxp.mvps.org/repairwmi.htm, this also mentions Vista.