I remove the old range oven to make space. You will need this to be able work around the microwave and remove it. I removed the bolts that attached the microwave to the wall. There is also a grid on the wall which is used to hook the microwave in place. I installed the new grid and drilled new holes on the top cabinet because the new microwave does not have the same bolt layout as the old one. I decided to stick with the same brand (GE) to try to minimize the modifications, but I still had to do some work. The hardest part was getting the new microwave on the grid. You need at least two people to do this in a safely way. Once the microwave was on the grid, the rest was easy. I screwed the bolts from the top and done. The new kitchen was then roll into place, and my kitchen rejuvenated 20 years:
I can now enjoy my new appliances. I will keep you posted in any other progress I make.