In command prompt, in order to cd into a directory with a name containing spaces, you need to use the cd command, followed by the name of the directory (the directory containing spaces) in quotation marks.

This is what I mean:

cd "directory name with space(s)"

where

directory name with space(s): is the name of the directory you want to change to.

Note: Please do not use the single quotes in this command. It will not work.