Home > Microsoft Platforms, Microsoft Windows 7 > How to control and reduce the number of Dump Files Windows creates and saves

How to control and reduce the number of Dump Files Windows creates and saves


How to control and reduce the number of Dump Files Windows creates and saves

Every time your Windows computer crashes, it creates a Dump File. These mini dump files are memory images of that point in time, when your Windows computer had crashed.

This dump file type includes the following information:

  • The Stop message and its parameters and other data
  • A list of loaded drivers
  • The processor context (PRCB) for the processor that stopped
  • The process information and kernel context (EPROCESS) for the process that stopped
  • The process information and kernel context (ETHREAD) for the thread that stopped
  • The Kernel-mode call stack for the thread that stopped.

Windows 7, by default creates and stores 50 mini dump files. These mini dump files are located in the %SystemRoot%\Minidump directory, normally the %SystemRoot% coincides with C:/WINDOWS directory.

If you are a geek who needs to use these dump files to troubleshoot your computer crashes, then having the last 50 dump files may be of use to you!

If not, they will simply end up eating disk space.

You can if you wish, reduce the number of dump files which your Windows creates.

To do so open regedit and navigate to the following key:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\CrashControl

Double click MiniDumpsCount and change its value data.

The default in Windows 7 is 32 Hexadecimal or 50 Decimal. Reduce its Decimal value to 10, if you only want the last 10 mini dump files to be saved.

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