system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why is it that when you uninstall something on your computer, there are still folders related to what you uninstalled left behind with nothing in them ?
gpt
On Windows, you can't immediately delete a file that is being accessed by some application or service. Consequently, you can't remove the directory that contains this file, even if you don't need it anymore.

Now, you can tell Windows to delay the file's removal until it's closed (no longer accessed). That's why the file will be gone eventually. However, there's no way to tell Windows to delay the directory's removal until it's empty. Hence, occasional leftover empty directories.