thư mục in English:

In which folder did you save the file?

Make that a shared folder.

- folder, katalog

Put all your written tests in this folder so you don’t lose them.

You've been saving it in somebody else's folder.

a group of programs or documents stored in a computer, shown by a picture of a folder on the screen

Uninstall method: Chuck the whole folder into the recycle bin.

Take care to indicate the right object before sending me your email, otherwise it will end up in the spam folder.