changing windows settings automaticly

i need a software to change in hidin mode computer security logs Under event viewer right click on the SECURITY LOGs then choose PROPERTIES. Below you'll find some options and one of the following will solve the problem: Increase the log file size from the default 512KB to whatever. Choose " OVERWRITE EVENTS AS NEEDED" or Choose " OVERWRITE EVENTS OLDER THAN X DAYS" (here X by default is 7 days and so we can put 1 or 2 days instead) ill buy first ready solution thanks and regards