Policy

Specify the maximum log file size (KB)

Microsoft Windows

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Specify the maximum log file size (KB)
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Policy overview

Key metadata and intent for this policy.

Computer
Category
Windows Components > Event Log Service > System
Supported on
At least Windows Vista

Supported OS tags: Windows10, Windows10RT, Windows11, Windows7, Windows8, Windows81, WindowsRT, WindowsRT81, WindowsServer2008, WindowsServer2012, WindowsServer2012R2, WindowsServer2016, WindowsVista

This policy setting specifies the maximum size of the log file in kilobytes. If you enable this policy setting, you can configure the maximum log file size to be between 1 megabyte (1024 kilobytes) and 2 terabytes (2147483647 kilobytes), in kilobyte increments. If you disable or do not configure this policy setting, the maximum size of the log file will be set to the locally configured value. This value can be changed by the local administrator using the Log Properties dialog, and it defaults to 1 megabyte.

Internal name
Channel_LogMaxSize_4
Policy ID
5cb8133401e6
Elements
1

Registry values

How enabled and disabled states update the registry.

No explicit registry values are set for enabled or disabled states.

Policy elements

Inputs and configuration options exposed by this policy.

ScopeElementTypeRegistry mappingConstraints & behaviorCopy
Computer
Maximum Log Size (KB)
ID Channel_LogMaxSize
decimal
Path
Software\Policies\Microsoft\Windows\EventLog\System
Value name
MaxSize
Type
REG_DWORD
Range: 1024 to 2147483647
Maximum Log Size (KB)
Computer · Type decimal
Registry mapping
Path
Software\Policies\Microsoft\Windows\EventLog\System
Value name
MaxSize
Type
REG_DWORD
Details
Range: 1024 to 2147483647