Cannot access the Windows Management Instrumentation software; Windows Management files may be moved or missing in Vista

1.Click Start, Search Box type cmd and right-click on command prompt as select Run as Administrator.
2.Go to %systemroot%\system32\wbem. (Use CD command to switch to directories)
3.Type: regsvr32 wmiutils.dll.
4.Type: net stop winmgmt.
5.Type: net start winmgmt.

this will resolve your issue