I get it. It can be quite tedious task to look scrounge every file and folder and look for unnecessary and outdated stuff to delete. That’s why some business owners prefer to hire someone for this very job.
But if you are a small business owner or simply using it for your own personal use, you can use Disk Diag to help clean up most of the junk and unnecessary files that you don’t need anymore. The lack of information about what it’s suggesting deleting might be quite uneasy for some people, but rest assured, it knows what needs to be deleted! Source – Disk Diag