轉自:http://hi.baidu.com/guicomeon/item/d6753a177fc76f0f8fbde46a

系統默認會在 C:\Windows 目錄下創建 MEMORY.DMP 文件，來搜集內存錯誤信息。但有時卻找不到。搜索后找到原因：系統分區剩余空間小于25G會自動刪除該文件。?

Algorithm to decide whether to store/delete memory.dmp file generated after a system crash:

First report the kernel fault to the Online Crash Analysis Service.

Then, if machine has a registry setting?AlwaysKeepMemoryDump?set to 1, store the dump file on disk.

Else, if machine is a Windows Server SKU, store the dump file on disk.

Else, if the machine is joined to a domain (i.e. this is a corporate machine), store the dump file on disk.

Else, if machine is not on a domain (i.e. this is a home user’s machine),

• If free disk space is >= 25GB, store the dump file on disk.
• Else (free disk space is < 25 GB), delete the dump file.

（http://blogs.msdn.com/b/wer/archive/2009/02/09/kernel-dump-storage-and-clean-up-behavior-in-windows-7.aspx）

如若始終保存該文件，須在注冊表中添加相應鍵值：

The exact location of the?AlwaysKeepMemoryDump?setting in the registry is:

• HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\CrashControl\AlwaysKeepMemoryDump Type: REG_DWORD

轉載于:https://www.cnblogs.com/zzSoftware/p/3554148.html

總結

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