How to Flush the Windows DNS Cache CodeUnit 21 JAN 2013

Quite often you can resolve web connection issues by flushing your possibly corrupted or out of date system DNS cache. To flush the DNS cache whilst using Microsoft Vista, Windows 7 or Windows 8 is relatively trivial, making use of the standard ipconfig executable.

First, we need to open a command prompt running under Administrator rights:

  1. Click the Microsoft Start Button in the bottom left corner of the screen
  2. Click All Programs
  3. Click Accessories
  4. Right-click on Command Prompt
  5. Select Run As Administrator

In the command window type the following and then hit enter:

ipconfig /flushdns

If everything runs correctly, you should see the following confirmation:

Windows IP Configuration Successfully flushed the DNS Resolver Cache


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About Craig Lotter

South African software architect and developer at Touchwork. Husband to a cupcake baker and father to two little girls. I don't have time for myself any more.