How to Fix Buffer Overrun Errors

A buffer overrun, also known as buffer overflow, occurs when a program overruns the buffer limits and starts to overwrite adjacent memory, resulting in data loss and slow performance. You can troubleshoot buffer overruns by a variety of methods. You may update your Windows operating system files. You may also enable Data Execution Prevention (DEP), which is a key buffer overrun defense feature. If your buffer overrun originates from your Internet Explorer web browser, which is a common problem, you may want to increase its security levels.


  1. Perform a Windows Update

    • 1

      Click the "Start" menu and select "All Programs."

    • 2

      Locate the menu command "Windows Update." Click to launch the program.

    • 3

      Click the link "Check for updates" in the left pane. Let Windows install all the required updates.

    • 4

      Reboot your computer once the update installation is complete.

    Increase Security Level in Internet Explorer

    • 1

      Launch Internet Explorer. Click "Tools" and select "Internet Options."

    • 2

      Click the "Security" tab.

    • 3

      Click and drag the slider all the way up to "High" under the sub-heading "Security level for this zone."

    • 4

      Click "Apply" and then select "OK."

    Enable Data Execution Prevention

    • 1

      Click the "Start" menu and select "Control Panel."

    • 2

      Click "System and Maintenance." Click "System."

    • 3

      Click "Advanced System Settings." Type the administrator password if prompted.

    • 4

      Click "Settings" listed under "Performance." Click the tab labeled "Data Execution Prevention."

    • 5

      Click "Turn on DEP for all programs and services except those I select."

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