Flushing the DNS resolver cache can help resolve DNS related problems in Microsoft Windows 10. Issues would include web site not found errors or not being able to view certain web pages that have changed.
To reset the DNS resolver cache, perform the following steps:
- Hold down the Windows key and press “R” to bring up the Run dialog box.
- Type “ipconfig /flushdns” then press “Enter“. (be sure there is a space before the slash)
That’s all there is to it. A command box will flash on the screen for a split second and the DNS Resolver cache is cleared.
This article applies to Windows 10, 8, 7, XP, 2000, 2003 and 2008.
Flush and reset a client resolver cache using the ipconfig command – Microsoft
What is the DNS Resolver Cache?
Whenever you visit a website using it’s domain name (i.e. microsoft.com), your browser is directed to a DNS server where it learns the IP address of that website. You are then directed to that website. A record of the IP address that domain name points to is created within Windows so that if you visit that same website again, the information is accessed quicker. These records that get created make up the DNS Resolver Cache.
Why would flushing the DNS Resolver Cache fix anything?
Sometimes an IP address to a site may change. If the DNS Resolver Cache has the old IP address record, it may result in your computer not being able to reach the site. Cached data can also become corrupt. Therefore, clearing it is a step you can take whenever you cannot connect to a site.
Can I view the data in the DNS Resolver Cache?
Yes. From a command prompt, you can use the “ipconfig /displaydns” command to view the data.