I use Linux, but let’s be honest here: every operating system requires space to function properly. While Linux is known for taking up less storage space (especially distros such as Alpine), as you install things, it will demand space, and that includes future updates. With the recent additions of AI within Windows, 8GB is compatible with the size of neural weights or datasets (speaking as someone who has dealt with AI in a technical/development capacity). If they're registered as "Temporary files" from "old installation", I guess it has to do with some re-training of Windows AI tools. I'm not discussing the merit of those AI tools (whether they're useful or not to the final user), but AI tools, among all modern features, takes space.