Full Transaction Log disk

Hello all,

I have two databases and problems with the transaction disk growing up too much and getting don't less.

Using the query:

select name, recovery_model_desc, log_reuse_wait_desc
from sys.databases

I can see both databases have the Recovery Model set to FULL. The files .ldf get values too high.

How can I change the default configuration to NEVER have problems with the full disk? Because once the disk is full the web application can't do more transactions/requests queries.

Thank you.