Hello again,

I'm having an issue with my 231 GB hard drive which is filled up for no apparent reason. I'm running windows 10 Pro and I've exhausted You Tube and eliminating all the usual suspects that I can fine. Last night I managed to run a back up to an external USB drive using an amount of space basically equal to the capacity of my hard drive which does make sense since it's full. All my visible programs and allotted space for Windows use only a small percentage of my disk space and I am now rather confident that my drive is filled up with hidden copies upon hidden copies. Question is, "how do I see those files, if they do exist, and how do I remove them"? Thanks. Any input appreciated.