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HKLM\SYSTEM\CurrentControlSet\Services\EventLog\ Log-name

Data type


Default value


0x10000–0xFFFF0000 ( bytes, in 64 KB increments ) (64 KB–4 GB)

0x80000 ( 512 KB )


Specifies the maximum size of the log file.

This entry corresponds to the Maximum log size option on the Properties page for a log in Event Viewer.

You cannot resolve a full log by increasing the value of this entry. You must clear the log file manually by clicking Clear all Events on the Properties page for any log in Event Viewer.

Change method

To change the value of this entry, use Event Viewer.

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