Select “For Single File Download via Browser”.Check the box to delete the software and restart your computer.(Check the driver installed on your system and re-install the network driver from the below steps accordingly). Right click on it and click on “uninstall”.Under “Network adapters”, you will find the 'Realtek' driver listed.Click on “Start” and right click on “Computer”.If the issue persists, you can also download and update network card driver: Try using your computer in safe mode and see if you face same issues with Internet in safe mode or not.Logon to your computer and Windows 7 will enter Safe mode. When Windows starts you will be at a typical logon screen.Then press the enter key on your keyboard to boot into Windows 7 Safe Mode.
When you see this information start to gently tap the F8 key on your keyboard repeatedly until you are presented with the Windows 7 Advanced Boot Options screen. You can follow the steps below to access Safe mode with networking: You can try using your computer in 'Safe Mode With Networking' and see if you face the same issue.