The installation of Parallels itself requires at least 60GB of free space, and with apps such as Word and Excel taking 2-3GB of space each, let alone associated data, you can see how Chromebook storage will soon start to fill up. Most Chromebooks aren’t blessed with a great deal of it, and Parallels recommended specs stipulate 128GB, which is the bare minimum you would need to install Windows and just a handful of apps. The biggest potential blocker is storage. There are only a handful of “preferred devices” capable of running Windows 10, including the Google Pixelbook devices, the HP Elite c1030 and the Dell Latitude 5300.
The big one is this software only works with enterprise-grade Chromebooks - it’s not designed for the $200 Chromebooks you can pick up on Amazon.