Hello, I would like to redirect one IP address to a localhost, but each time something reverts the original content of hosts file. I open windows/system32/drivers/etc/hosts with Notepad under run as administrator, then make a change in hosts file. All new coonections are redirecting to localhost (127.0.0.1), but suddenly in some time my hosts file is reverted to the original state. My system runs Windows Vista x64 bit edition. What can change my hosts file and how to make a constant change in it? Best Regards, Voronkov Konstantin

Hi, Thank you for your post! Usually, certain third party software or spyware can cause such behavior. I would suggest perform a full disk scan using your antivirus software and prepare clean boot to narrow down which software modified it. Clean Boot prevents software conflicts by preventing the startup items and non Microsoft services from loading. This way you can safely follow the process of elimination to check which application is causing this behavior. Refer: How to troubleshoot a problem by performing a clean boot in Windows Vista or in Windows 7 http://support.microsoft.com/kb/929135 Note: Ensure that you put your computer back to normal startup mode after completing the troubleshooting steps. Steps are available in the article given above. Regards, Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.