Microsoft have confirmed a bug with Server Message Block in Windows 7 that could allow attackers to cripple the machine runing Windows 7 but also Windows Server 2008 R2 machines.

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Every computer that connects to the internet should be protected by a firewall, either a software firewall or a hardware firewall, although a hardware solution can provide better protection if it is configured right.

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There are two types of firewalls you can purchase, a hardware firewall and a software firewall. As this post reflects laptop security for now we’ll discuss using a software firewall and how it can protect your system from unauthorized access.

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