Place in a single layer on a dish suitable for a microwave oven. The dishes should be greased with oil, since potatoes can stick to the plate, so it will be easier to get them.
And you can hedge and cover with high-quality baking paper.
Put it in the microwave for 4 minutes at maximum power (I have 850). Look at the condition of the potatoes, put out for another 2-3 minutes (it is advisable to check the readiness of the chips every minute). It all depends on the microwave oven, so it is quite possible that you will need more or less time.
Enjoy your meal!