After you have upgraded to Windows 7
, if you are unable to turn on your Windows 7 Firewall, this article will be able to help you.
To resolve this problem, you will have to ensure that the required services are started and running:
- Windows Firewall (MpsSvc)
- CNG Key Isolation (KeyIso)
- Base Filtering Engine (BFE)
- Firewall Client Agent (FwcAgent)
In case they are not, you may get this error message: Windows firewall canít change some of your settings Error code 0x8007042c