open ubuntu, this should give you a command prompt that looks like this:
username@DESKTOP-S0EN2QH:~$
WSL is mounted on the c drive and the system32 path, which is a system folder which does not permit users to have full access, because of this, it is important to make sure to install applications from your default users home path ~
as shown above, this is where this user has full access permissions and will ensure that all the applications and interactions will complete withouth any access permission errors.
even though you will have a default .bashrc and .profile file which get run automatically by ubunto everytime you open a terminal, it is best to run the following command to create a .bash_profile:
echo "source ~/.bashrc" >> ~/.bash_profile