Why Does My Switch Lose Its Configuration During Reboot

I have a 2960 catalyst switch that loses configuration after a reboot or loss of power.

My routers had a similar issue that I solved with this article: https://www.cisco.com/c/en/us/support/docs/routers/2500-series-routers/6201-lose-config-6201.html

I think it has something to do with this as well for the switches can anyone give me a hand?