Win7 host files are modified how to repair

hosts file location is a file used to store node information in the computer network, it can map the host name to the corresponding IP address, to achieve the DNS function, it can be controlled by the computer user . The hosts file is very useful, the location of the hosts file is also very hidden. It has been useless for a long time. It is hidden that the location of the hosts file is in a directory of sysytem32, but it has not been found for a long time. Where is the location of the hosts file?
Windows 7 can not modify the hosts file Solution
Users: I use the Windows 7 Ultimate, I want to modify the hosts file, found that it can not be modified, the prompt does not have permission. When I opened the file with Notepad, I found that it could not be saved.
A: I have tried one of the easiest ways, that is, to run Notepad as an administrator, you can open and modify the save with Notepad.

(The location of the hosts file is C:WINDOWSsystem32driversetc)
Because a neighboring child always comes to play web games at home, repeatedly advised to invalidate, decided to use technical means to control him, the simplest control page opens The method is to add a non-existent IP address to the hosts file. For example, 0,0,0,0.
XP hosts file location: C:WINDOWSsystem32driversetc
win7 hosts file location: C:WINDOWSsystem32driversetc
win7 hosts file location found, but there may be no way to modify, because Considering security, WIN7 can't directly modify the HOSTS file, that is, if you run Notepad as an administrator, you can open and modify the save with Notepad.
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0.0.0.0 pubstat.sandai.net
0.0.0.0 mcfg.sandai.net
0.0.0.0 biz5. Sandai.net
0.0.0.0 float.sandai.net
0.0.0.0 recommend.xunlei.com
0.0.0.0 cl.kankan.xunlei.com
0.0.0.0 www.7k7k.com< Br> Many friends often encounter webpages that can be opened smoothly when surfing the web, while some webpages can't be opened anyway, but can be easily opened on other computers. In this case, the biggest possibility is that your IE browser is recruited, and the Hosts table file is often the source of the disaster. In the operation of the computer online, there have been many encounters such a situation: the browser default home page is forced to be changed to such as http://www.XXXX.com, or enter most websites will jump to this site, Jinshan dedicated IE Repair tools, etc., nothing. Run the registry editor to find http://www.XXXX.com, but also report not found. Estimated to take advantage of a normal IE function. When this happens Open the C:WINDOWSsystem32driversetchosts file with Notepad.
xxxx is any domain name.
Deleting these domain names and the previous IP will return to normal.