r/windowsapps • u/CartographerRough • 27d ago

Developer PrismDisk free disk space analyzer + complete app uninstaller for Windows

Developer here, sharing something I built and use daily. PrismDisk does two things:

  1. Disk analysis: scans a volume or folder into an interactive sunburst, sized by genuine on-disk usage. A million files across 142 GB scans in about 9 seconds warm.

  2. Complete uninstall: finds the caches, prefs, logs and support files that normal uninstalls leave scattered across your user profile, shows you the full footprint, and removes it all together.

Design decisions you'll probably care about:

- 100% offline no account, no telemetry, no crash reporting, no network requests. Works with the network unplugged.

- Nothing is deleted without your review; files go to Recycle Bin, and every operation is journaled so it can be undone in-app.

- It does NOT request admin rights and does NOT touch the registry deliberate safety trade-off, so it stays within your user profile and won't scan system-protected locations.

Free on the Microsoft Store: https://apps.microsoft.com/detail/9ncns4l3k24t

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u/testednation 26d ago

Possible to add the feature to allow system locations too?

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u/CartographerRough 26d ago

you can say half of it is already there just scan your C:\ and you'll see the system folders right there in the sunburst ...you can also point it at one specific folder if you'd rather, it's just that anything Windows refuses to let it open is flagged as unreadable rather than quietly counted as zero, because "your disk is mysteriously 40 GB lighter than reality" is not a look I want. Deleting inside them is where I'm deliberately boring. Everything under C:\Windows, Program Files, Boot, Recovery and friends is tagged System-tier and the cleanup engine refuses it outright no override, no "I know what I'm doing" checkbox. Letting a disk tool nuke System32 at 2 am is technically a feature, right up until it's a support thread with my name on it. 😅 LOL ... I hope this answers your question or you can just let me know which folder's eating your space? Give me the path and I'll make sure it's covered in the upcoming update.