Fixing Windows Firewall
Providing that your Windows Firewall is grayed out due to a malware issue, you will be able to fix it with the following instructions.
Note however that security and system faults on a managed network should be reported to your system administrator – attempting to resolve an issue without admin privileges is unfortunately not possible.
For users with a single home PC or network, resetting the Windows Firewall is possible and reasonably straightforward.
You will need to be logged into your PC as an Administrator – to check which account on your Windows PC has this status, go to Start > Control Panel > Users and check the details of your logins; in most cases where there is a single account, this is the one with admin rights on that PC. In the case of multiple accounts, the one that was created first is typically the Administrator.
Next, go to Start > Run and enter cmd before clicking OK.
The command prompt window should open – enter the following:
netsh Winsock reset
If you are logged in as Administrator, you should see this message:
Successfully reset the Winsock Catalog. You must restart the machine in order to complete the reset.
You should then Restart your PC as prompted to complete the reset.
(Should you attempt this fix while not logged in to the Administrator account, Windows will request that you try again after having logged off and back on with the admin credentials.)
Following restart of your PC, the firewall issues should be resolved - no longer is Windows Firewall grayed out!