How to Fix Poisoned DNS Cache for Windows Vista

The DNS (Domain Name Server) cache on your computer contains the information related to the DNS utilized by your host Internet service provider. A "poisoned" cache means that the information contained therein is inaccurate, either due to system errors or malicious interference. Resetting the information contained in the cache will clear up the problem on your Vista system.

Instructions

    • 1

      Open "Start" and type "cmd" in the "Search" box.

    • 2

      Press "Enter" to display a DOS prompt.

    • 3

      Type "ipconfig /release" and press "Enter," flushing your DNS cache information.

    • 4

      Type "ipconfig /renew" and press "Enter," reconfiguring the cache.

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