The situation is like this.
My buddy's computer (cloud server) has a total of 60G of hard drive space, with C and D drives split in half.
Then today, when I opened the File Explorer, it froze.
Then I used the cleanup function of Huorong and the space recovery function of Dism++, but the effect was not significant.
Then, with nothing else to do, I looked through the current user's folder (C:\Users\Administrator).
And then I understood.
Inside, there's this bunch of stuff called .vscode and .cache that caught my eye first.
There's not much to 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 the usual three folders, but the other two are not worth mentioning, so let's just focus on Local.
Inside, there are all kinds of software, including updater, even the ones you've uninstalled, and they don't delete this stuff after updating (at this point, I really want to curse these developers' mothers).
And then there's npm, nodejs, package-cache, and pip.
They are really useless and 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.
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