How does the win7 system block some bad websites?

How does the win7 system block some bad websites?

1. Click on the Start menu, click on “Computer”;

2. Open the folder “C:WindowsSystem32driversetc”;

3. Right click “ld”; Hosts” file, select properties;

4. Click on the "Security" tab, click “Edit";

5. Select “users” in the edit window, then In the following options, all are modified to “Allow” and click “Apply”, click Yes in the warning window that pops up;

6. Double-click to open the “hosts” file, and the “Open Mode” box will pop up. In the box, select “Notepad”, then click OK;

7. We enter “’127.0.0.1‘’space‘’need to be blocked at the bottom of the text URL & lsquo;” For example, <127.0.0.1 www.qq.com ”, if you need to block multiple URLs, you need to take another line;

8. After the modification, we click “file&rdquo ;, click “Save”