Absolutely yes. As long as you can build (or have someone build) a screen to the same dimensions and the framed windows you are removing. Should be a fairly simple job.
As Snoonyb points out, you should be able to just rotate those handles counter clockwise and have the framed windows fall right out. Though it could be painted in too... You may have to go all the way around the edge with a utility knife to cut the paint and free it up.