Control the number of dump files created and saved by Windows

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If your Windows computer crashes, it creates a memory dump file . These minidump files are memory images from the moment your Windows computer crashed.

This dump file type contains the following information :

  • Process information and kernel context (EPROCESS) for the stopped process
  • Process information and kernel context (ETHREAD) for the thread, which has been stopped
  • The kernel call stack for the thread, which has been stopped.

Different types of discharges are possible: Kernel Memory Dump, Small Memory Dump & Complete Memory Dump. Windows 8 adds a new option called automatic memory dump.

Change the number of dump files created by Windows

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You can change the dump settings in Control Panel > Control Panel > Control Panel > System > Advanced System Settings > Advanced Tab > Startup and Restore > Settings.

Windows creates and saves 50 default minidump files. These mini dump files are located in the directory %SystemRoot%Minidump.

If you are a geek who needs to use these dump files to fix a computer crash, then the last 50 dump files may be useful ! 😉

Otherwise, they will just end up eating disk space.

If you wish, you can reduce the number of dump files created by Windows.

Open regedit and navigate to the next key :


Double-click MiniDumpsCount and modify its value data.

The default value in Windows is 32 hexadecimal or 50 decimal. Reduce the decimal value to 10 if only the last 10 minidump files should be saved.

How to read and analyze the minidumps that Windows creates may also interest you !

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