Virus deleted windows firewall service

Hello, i recently suffered a virus that AVG picked up on to late it infected c/windows/system32/services.exe i managed to remove it dispite many antiviruses inability to by renaming the infected file services.exe.old then restarting my computer windows replaced it and was working properly so i ran my antiviruses and downloaded afew more picked up a total of 10 infections and im no longer picking up viruses with my antiviruses (AVG free, spybot S&D, avast, malewarebytes) after all that i looked at windows firewall and found i couldn't turn it on so after more digging found its service had been deleted, more digging i managed to get its service back but i cannot start it nor can the program from windows for fixing the firewall. Please help!

Thanks im working on it now and ill let you know the results asap

i keep getting a problem where it stops downloading the files with about 1.7mb to go then says there was a rpoblem downloading the required windows defender offline files what should i do? its happened 3 times now

ok so i ran windows defender offline finaly completed the download after the 4th try, iit picked up 2 trojan downloaders and 5 trojans for a total of 7 items but i cant find the log where its supposed to be any help? also i still cannot turn on windows firewall.

just ran it and the results are as follows

Windows Firewall Troubleshooter Publisher details Issues found Windows could not start Windows Firewall
Not fixed [IMG]file:///C:/Users/Amos/Documents/ResultReport_files/error.png[/IMG]
Set permissions for the related registry keys
Succeeded

[IMG]file:///C:/Users/Amos/Documents/ResultReport_files/check.png[/IMG]
Windows Firewall service is not started
Not fixed [IMG]file:///C:/Users/Amos/Documents/ResultReport_files/error.png[/IMG]
Start Windows Firewall service
Succeeded

[IMG]file:///C:/Users/Amos/Documents/ResultReport_files/check.png[/IMG]
Issues checked Cannot Access Shared Files and Printers
Checked [IMG]file:///C:/Users/Amos/Documents/ResultReport_files/check.png[/IMG]
Remote Assistance is not working
Checked [IMG]file:///C:/Users/Amos/Documents/ResultReport_files/check.png[/IMG]
Windows could not start Windows Firewall BFE service
Checked [IMG]file:///C:/Users/Amos/Documents/ResultReport_files/check.png[/IMG]
Issues found Detection details
6
Windows could not start Windows Firewall Not fixed [IMG]file:///C:/Users/Amos/Documents/ResultReport_files/error.png[/IMG]
On a computer that is running Windows 7 or Windows Vista, you find that the Windows Firewall service is not running. When you try to manually start the service, you receive the following error message: "Windows could not start the Windows Firewall, DHCP client, or Diagnostic Policy on Local Computer. For more information, review the System Event Log. If this is a non-Microsoft service, contact the service vendor, and refer to service-specific error code 5."

6
Windows Firewall service is not started Not fixed [IMG]file:///C:/Users/Amos/Documents/ResultReport_files/error.png[/IMG]
Windows Firewall service is not running or is not started.


Issues checked Detection details
6
Cannot Access Shared Files and Printers Checked [IMG]file:///C:/Users/Amos/Documents/ResultReport_files/check.png[/IMG]
You cannot access shared files and printers even though you have enabled File and Printer Sharing in Windows.

6
Remote Assistance is not working Checked [IMG]file:///C:/Users/Amos/Documents/ResultReport_files/check.png[/IMG]
Remote Assistance is not working even though you have enabled Remote Assistance in Windows.

6
Windows could not start Windows Firewall BFE service Checked [IMG]file:///C:/Users/Amos/Documents/ResultReport_files/check.png[/IMG]
On a computer that is running Windows 7 or Windows Vista, the Windows Firewall service is not running. When you try to manually start the service, you receive the following error message "Windows could not start the Windows Firewall, DHCP client, or Diagnostic Policy on Local Computer. For more information, review the System Event Log. For more information, review the System Event Log. If this is a non-Microsoft service, contact the service vendor, and refer to service-specific error code 5."

apologies it would not allow me to upload the document in its original format.

it dosent exists on my computer i have checked twice now i can upload a screenshot but there is no Windows defender offline folder in C:\Windows on this computer could it have saved to another location? if not would running it again be any use?