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Can't turn on the Windows Firewall in the Security Center

On a computer that is running Windows Vista, the Windows Security Center warns you that the Windows Firewall is turned off. When you click Turn on now in the Windows Security Center to turn on the Windows Firewall, you receive the following error message:
Security Center can't turn on Windows Firewall.

In the Services console, you notice that the Windows Firewall service is not running even if the service is configured to start automatically. When you manually start the Windows Firewall service, you receive the following error message:
Windows could not start the Windows Firewall 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.
Note To open the Services console, Click Start the Start button, click Run, type Services.msc, and then click OK.
This problem can occur if the account that is used to start the Windows Firewall service does not have permissions to access the related registry entries.

Diagnose and fix the problem automatically

To fix the problem automatically, click the Fix-It image below. If a security notification appears, click Run.

Microsoft Fix it 9810866

More information
For more information about Windows Firewall for Windows 7, click:

To learn more about Windows Firewall for Windows Vista, visit:

Article ID: 2271812 - Last Review: 07/26/2012 17:46:00 - Revision: 12.0

  • Windows Vista Enterprise 64-bit Edition
  • Windows Vista Home Basic 64-bit Edition
  • Windows Vista Home Premium 64-bit Edition
  • Windows Vista Ultimate 64-bit Edition
  • Windows Vista Business
  • Windows Vista Business 64-bit Edition
  • Windows Vista Enterprise
  • Windows Vista Home Basic
  • Windows Vista Home Premium
  • Windows Vista Ultimate
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