I dug this up from your archives to help those who cannot turn off Windows firewall. This fix me twice.
"As for the security center error, this little hack (incase anyone else gets this issue) resets the WMI (Windows Management Instrumentation). In Vista, run cmd as admin otherwise do
Code:
net stop winmgmt
cd /d %windir%\system32\wbem
ren repository repository.old
net start winmgmt
It may take a little bit to rebuild the database. After that restart and you should be good to go."