When I try to open WIndows Firewall and Advanced Security I get the error message "there was an error opening WIndows Firewall with advanced security snap-in" below that it reads "The Windows Firewall with Advanced Security snap-in failed to load. Restart Windows Firewall service on the computer that you are managing. Error code: 0x6D9." I have checked services and the Windows Firewall service is not there. MPSDRV was not in the services but BFE was. I tried doing /SCANNOW and it found nothing wrong. MPSDRV.sys is listed in System 32 though. Please help how can I fix this? I need to get into the advanced security so I can get a Minecraft Tekkit server up and running.

Thankyou.

open command prompt as administrator, type in

net start "Windows Firewall"

quotations needed around Windows Firewall for net to understand what service you wish to start.

It says the service is invalid.

run this command (once again, cmd needs to be ran as administrator)

cd %userprofile% & sc query MpsSvc > firewall.txt & sc start MpsSvc >> firewall.txt & notepad firewall.txt

paste what comes up in notepad on here

Have an idea what's going on, but working on registry command to get your Windows Firewall registry settings.

This is what appeared in note pad.

Right now it's looking like some malware killed off mpssvc. one more command to pull your registry key for windows firewall service, see if it's easily salvageable by recreating the service or not.

reg export HKLM\SYSTEM\CurrentControlSet\Services\MpsSvc mpssvc.reg & notepad mpssvc.reg

Also make sure you have the latest windows updates installed, and what version of windows are you using and what antivirus software do you have installed?

Your registry keys are also hosed.


(repost of my edit):
Also make sure you have the latest windows updates installed, and what version of windows are you using and what antivirus software do you have installed?

The only other updates I can install are the optional ones. I am on Windows 7 Home Premium 64-bit, Anti-Virus Avira AnitVir Personal- Free Antivirus.

Ok, just wanted to verify your AV wouldn't have it's own firewall that may have mucked with stuff. In that case, some malware most likely wiped out windows firewall.