HELP! Windows Fake Files? How to clean?

[[TC-R] Luke]

So you're saying that you had 50GB space and overtime you are now left with 10GB without installing anything.

Windows uses hidden files which you can unhide. Can't quite remember how (I believe you right click on a folder and select properties and in general, they maybe a "show hidden" selection).

Yeah these are mostly to protect important window files such as updates and drivers and could be the case here. But I'm not sure that much memory would be used.