# Decrease Memory Usage

`di de crashlog read`

This command will show you the crashlog of the fortigate

`"Kernel exits extreme low memory mode"` looking for that error

`diag autoupdate versions` will show the versions of the autoupdates

`diag autoupdate versions | grep Attempt -f` this will show the times of autoupdate attempts

First thing we can do is disable the automatic security rating report.

`config sys global`

`set security-rating-run-on-schedule disable`

`end`

Next we will set the Internet Service Database to only download the in use databases

`config sys fortiguard`

`set internet-service-database on-demand`

`end`

follow that with

`execute update-ffdb-on-demand`