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One way to update Windows 7 - To turn on automatic updates in Windows 7:
1.Select the Start button
2.In the search box, enter Update, and then, in the list of results, select Windows Update.
3.In the left pane, select Change settings, and then under Important updates, select Install updates automatically (recommended).
4.Under Recommended updates, select the Give me recommended updates the same way I receive important updates check box, and then select OK.
5.Reboot your computer after you have done all these steps.
6.Voila! Windows will install updates automatically by itself and there is no need to keep an eye on it any more.
1.Click Start, then select Control Panel.
2.After that, open System and Security to enter into Windows Firewall.
3.On the right pane, there are two types of networks link of which firewall state are set ON. They are Home or Work (Private) networks and Public networks. On the left pane, you can see button Change notification settings, click on it.
4.You can see a new window below. To turn off the Windows Firewall click on the Turn off Windows Firewall option button. After that, click OK.