Fix Event ID 1104: The Security Log Is Now Full on Windows 10/11?
Fix 1: Enable Event Overwriting
Turning on the overwriting logs option will allow the Event Viewer to overwrite the old logs. It will save the memory and prevent it from getting full. To do so:

Step 1. Type event viewer in the search bar and hit Enter.

Step 2. Expand Windows Logs and select Security.

Step 3. In the right pane, click on Properties .

Step 4. Under Actions -Tick "Overwrite events as needed (oldest events first)" and hit OK to save the changes.