When changing Application Windows Event Log maximum size and you are seeing the message below then it is possible that it is set by group policy (local or Active Directory).
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Event Viewer
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The Maximum Log Size specified is not valid. It is too large or too small. The Maximum Log Size will be set to the following: 1028 KB
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OK
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Event Viewer
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The Maximum Log Size specified is not valid. It is too large or too small. The Maximum Log Size will be set to the following: 1028 KB
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OK
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This behavior can be modified allow changes via Windows Event View application. To do so open Group Policy Editor (gpedit.msc). Then navigate to Computer Configuration | Administrative Templates | Windows Components | Event Log Service | Application (for example) then change Maximum Log Size (KB) to Not configured.
Note that you need to be an administrator to make the changes.
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