(I'm not 100% sure of WP version)
I installed MVIS Security Center (Plugin) and started going through your recommended changes.
I tried password protecting my admin folder, but this stopped the site from working, so removed the password.
I changed permissions on wp-admin, & wp-includes to make them writable by me only.
This was yesterday and today the site is viewable, but I can't access my dashboard (message says Page Not Found)
I have mucked things up somehow but don't know where!! Help!
I have tried disabling all plugins via Cpanel, but this didn't help.