Hi jhnjns32, welcome to 7F!
Have you recently had any episodes with any Viruses?
Have you looked in Services to see if Base Filtering Engine (BFE) populates the Services List?
Use this tutorial to go to
Services - Start or Disable
You should find the Base Filtering Engine near the top of the list. follow the instructions to start the Service.
Black Viper's advice is to have the setting at Automatic (Started) Home Premium.
If you look under the dependencies tab for "IPsec Policy Agent" and "IKE and AuthIP IPsec Keyring Modules" you will find BFE listed as dependent, and that is why you received the error message. It is either Stopped or missing entirely.
If BFE is not listed in Services try a
Restore point,
SFC /scannow, or you may need to do a
Repair Install.
If you have had a virus a restore point may not work, and your best bet would be a
Clean Install Windows 7.