Windows firewall is missing in Services

That is mainly due to a virus/malware infection. To repair the registry entries do the following:

*** Taken from http://www.hageltech.com/blog/2012/02/07/base-filtering-engine-problems.html ***

First of all apply the firewall registry fix: 

http://dl.hageltech.com/blog/Firewall-Repair-Windows-7.reg

Then apply the BFE reg fix 

http://dl.hageltech.com/blog/BFE-Repair-Windows-7.reg

Fix permissions in the registry:

1.     Open Registry Editor (type regedit in Start Menu):

2.     Navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\BFE\Parameters\Policy

3.     Right-click and select Permissions

4.     Click Add, enter “Everyone” and click OK

5.     Click on Everyone in the list at the top, and check the “Allow Full Control” checkbox below.

6.     Click OK to dismiss this dialog.

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Copy and paste the following to a .bat file and run it as Administrator.

sc config MpsSvc start= auto

sc config KeyIso start= auto

sc config BFE start= auto

sc config FwcAgent start= auto

net stop MpsSvc

net start MpsSvc

net stop KeyIso

net start KeyIso

net start Wlansvc

net start dot3svc

net start EapHostnet

net stop BFE

net start BFE

net start PolicyAgent

net start MpsSvc

net start IKEEXT

net start DcaSvcnet

net stop FwcAgent

net start FwcAgent

If you get an Error 5 for MpsSvc do the following:

Fix permissions on the SharedAccess registry

1.     Open Registry Editor (type regedit in Start Menu):

2.     Navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\SharedAccess

3.     Right-click and select Permissions

4.     Click Add, enter “Everyone” and click OK

5.     Click on Everyone in the list at the top, and check the “Allow Full Control” checkbox below.

6.     Click OK to dismiss this dialog.

And that’s it.