Overview Your DNS cache stores the locations (IP addresses) of web servers that contain pages which you have recently viewed. If the location of the web server changes before the entry in your DNS cache updates, you can no longer access the site. If you encounter a large number of HTML 404 error codes , you may need to clear your DNS cache. After you clear your DNS cache, your computer will query name servers for the new DNS information. Windows 8 To clear your DNS cache if you use Windows 8, perform the following steps: Press Win+X to open the WinX Menu . Right-click on Command Prompt and select Run as Administrator . Run the following command: ipconfig /flushdns If the command succeeded, the system returns the following message: Windows IP configuration successfully flushed the DNS Resolver Cache. Windows 7 To clear your DNS cache if you use Windows 7, perform the following steps: Click the Start button. Enter cmd i...