Audit Level None still auditing failed logins

Do I need to restart SQL Services when i change the audit level to none so
that i do not capture failed logins in the error logs.
If so, is there any other way i can avoid logging those changes without
restarting the SQL Server as its in production.
Also how to do i retain only maybe 10 SQL error log files . We run
sp_cycle_errorlog every 4 days and is there a way to roll over after 10
files only...cos now we see errorlog files that go through errorlog.21,
errorlog.22 and so on till i have to delete them manually. Id like to have
maybe just 5 or 10 of them before they can be overwritten.
ThanksYou will have to recycle SQL Server to stop the audit logging. There is not
another way to stop it.
Rand
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