Also take a look at this article: ://www.pcadvisor.co.uk/how-to/storage/how-find-out-whats-taking-up-space-on-your-hard-drive-3580427/ 
Also take a look at this article: ://www.pcadvisor.co.uk/how-to/storage/how-find-out-whats-taking-up-space-on-your-hard-drive-3580427/