Turn off the Keurig and unplug it for a few minutes
Empty the water reservoir and remove any used K-Cup pod
Refill the reservoir with fresh water
Plug the machine back in and turn it on
Run several brew cycles with water only
Press and hold the relevant buttons for your model to clear the descale light if needed
Check the user manual for the exact reset steps for your Keurig model
Repeat the water-only rinse cycles until the descale indicator turns off