As noted earlier in this chapter, Windows Firewall is designed to be compatible with firewall programs from third-party providers . When you install a third-party firewall, it can register itself to take ownership of and manage certain firewall categories, such as port blocking, IPsec policy, and boot-time policy. The third-party program reports its status in Action Center, just as Windows Firewall does .
Even if you have a third-party firewall, you should leave Windows Firewall turned on and leave the Windows Firewall service set to run automatically. This is needed to enforce IPsec policies, and it also ensures that Windows Firewall continues to manage any categories that are not protected by the third-party program .
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