In order to communicate easily and efficiently with the DNS servers the client PC which is connected to the Internet will always cache the DNS information. The DNS cache helps the client user to get connected to the servers easily. In some cases, if the DNS servers ip address changes or some other configuration changes occurring in the DNS servers the cache on both side comes handy.
If the client PC is got infected with virus or worms then there are chances that the DNS cache become poisoned. For example if any virus or worms got infected on your computer,that can be programmed to manipulate the DNS entries and can easily redirect the client PC outgoing information to remote computer. In this case you will be in danger so here we will guide you how to clear or reset /Flush the DNS cache in windows computers.
In order to reset,clean or Flush DNS cache you need to use the windows TCP/IP con-fig tools.
Go to command Prompt in your windows computer ( I hope your user account will be admin rights) if you don’t know just right click and click on Run as administrator. In windows 8 it’s so easy. Just search for CMD and open the graphical command interface and type in ipconfig /flushdns and enter.
Now you will be greeted with confirmation.
If you are still on the older windows version then follow below screen shots
Windows 98/NT/2000/XP Flush DNS
Open up a command prompt (Start > Run >
cmd.exe > OK).
Type in the command
Windows Vista / Windows 7 Flush DNS
Flushing DNS cache is easy in newer versions of windows .Click the start button and navigate to the command prompt (Start > All Programs > Accessories > Command Prompt)
Make sure that you right click on the command prompt application and choose “Run as Administrator” Type in the command