Folders showing lock

Question

Whenever I open my documents, all the folders in it are displayed with a lock icon. Therefore, I cannot delete any file or folder in it.and also can't change folder permission.so, give me solution how to fix this problem

Answer 1

Probably you somehow lost ownership of these directories.

Run the command below in a terminal to gain ownership of all files and folders in your home directory recursively:

sudo chown -R $USER: ~