Windows Vista / Windows 7
Flushing DNS on newer versions of Windows is almost as easy as the earlier versions but due to Microsoft's security additions you must run the command prompt with administrator privileges.
- Click the start button and navigate to the command prompt (Start > All Programs > Accessories > Command Prompt)
2. Make sure that you right click on the command prompt application and choose "Run as Administrator"
3. Type in the command ipconfig /flushdns
Note: It is also possible to type in cmd into the Windows Vista / Windows 7 start menu search field and then right click on the cmd.exe result instead of having to navigate through the various sub menus.
