I am a developer so I have some hefty apps, but I've been using this computer for at least six months with all of my dev software running and it was fine. I've freed up at least 30 gig without installing any new software, and it's just getting chewed for no reason.
Sure, I could delete some of these apps, but I just know that 10 minutes later Windows will be telling me that I've got no space left. I had DropBox and OneDrive but these were some of the first things to go.
You really need to run some disk analysis software. The numbers on the Apps and Features in your post 2 above is just taken from the registry and is a figure that is written by the installer based on whatever the developers decided to put as a size.
It may be completely wrong (or missing) and takes no account of compression or anything. See here for example Windows Doesn't Calculate App Sizes On 1709? - Windows 10 Forums
Try WinDirStat or TreeSize or WizTree - it doesn't matter (@TairikuOkami is correct about TreeSize size reporting errors - they are all not perfect).
What they will tell you is what is taking the space which is what you need to know. Only then can you do something about it.
We get this at work quite regularly and it usually involves a program somewhere going doolally and constantly churning out log files. Give Windirstat a try, it works for us.
You can start over with a fresh clean install with a larger HDD/SDD to get more space.
Also have you run Disk Clean as Administrator?
Old updates and such take up space.
I agree. I have to figure out WHERE the space is going. What tool will do that? I'm hearing from some people its TreeSize, and other people that it is faulty. I tried C Cleaner and C Cleaner did show me where the largest files are. But, that doesn't help a lot. I can't find a pattern. The problem is that I have to find the pattern, not just the largest files.
So, is there an app that will show me where the largest chunk of directory space is being eaten up?
Quote
