Windows doesn't have those problems if it is well managed. The second you get the wiff of a problem on a specific device, you just rebuild it from scratch over

Windows doesn't have those problems if it is well managed. The second you get the wiff of a problem on a specific device, you just rebuild it from scratch over the network using WDS to select which installation you want, hit go, and walk away. But as I said above, managing the services behind the scenes (inc. WDS and the images) costs money and smaller school districts struggle to absorb that overhead. I think all you've done is describe the same problem in a roundabout way.