Tried to turn on windows firewall in security centre.
Unable to turn on - option is Grayed Out.
Corrupted Registry Key or Incorrect settings in windows firewall.
Follow the Steps Mentioned below:
Step 1: Open the Registry through start menu and type “regedit”
Step 2: Take Back up of registry by following the Article - 322756/322755.
Step 3: Navigate to path HKLM->Software->Policies->Microsoft->Windows firewall->Standard firewall.
Step 4: On the right side of the registry pane you will able to see key called EnableFirewall.
Step 5: Right click on the key and click on Modify and set the Value to 1 from 0.
Step 6:Close the Registry and check.
Method : 2
If customer has Vista Ultimate or Business follow the below steps.
If this step Doesnâ€™t work Can follow the steps mentioned above.
Step 1: Open gpedit.msc from start search
Step 2: navigate to Computer Configuration -> Administrative Templates -> Network ->Network Connections -> Windows Firewall ->Standard profile .
Step 3: On the right side of the Window check the option ->Windows Firewall: Protect all network connections
Step 4: Go to the properties options and make sure Not Configured option is checked ,if any other options is checked change it Not Configured option and save .
-if the Option is Not Configured is by default then change it to Enable or Disable and then changed it back to Not configured and save it.
Step 5: close the window and Restart the Computer and check
MS Shell User &