Unplug the microwave
Remove any loose accessories or turntable parts
Check local waste disposal rules for appliances
Take it to a household hazardous waste or e-waste drop-off site
Use a municipal bulky-item pickup service if available
Donate it only if it still works and is accepted by the recipient
Sell or give it away through a local marketplace if it is functional
Recycle it through an appliance recycling center
Contact the retailer or manufacturer for take-back options
Do not put it in regular trash unless local rules allow it