The situation is like this.
My friend's computer (cloud server) has a total of 60G of hard disk space, and the C and D drives are divided in half.
Then today, when I opened the resource manager, it froze.
Then I used Huorong to clean up and Dism++ to reclaim space, but the effect was not significant.
Then, out of boredom, I browsed through the current user's folder (C:\Users\Administrator).
And then I understood.
Inside, there's a bunch of stuff like .vscode and .cache that caught my eye first.
There's not much I can do about vscode, so I made a symbolic link to the D drive.
Then I opened AppData and was even more surprised.
Inside, there are three traditional folders, and the other two are not worth looking at, so let's just focus on Local.
When there are various software, there's an updater, and there are even ones that you have uninstalled, and they don't delete this thing even after they've finished updating (at this point, I really want to curse these developers' mothers).
And then there's npm, nodejs, package-cache, and pip.
Inside, there are really useless things that they don't delete themselves.
I strongly recommend that those of you whose C drives are full take a look at C:\Users\<your username>\AppData.
There will always be unexpected surprises for you.
In summary, after cleaning up, it really is useful and can free up a lot of space.
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The original link is https://blog.nekorua.com/posts/archives/110.html