What types of customization have you or would you make to your operating system, and why?

According to my brain it's a rational number because it can be put as a fraction

In windows explorer, select the file, folder, or groups of files and folders you'd like to copy. you can select multiple files or folders in several ways: click the first file or folder you want to select, hold down the ctrl key, and then click each additional file or folder you want.

Answer/the same permissions that they had in the source folder