Your C: Drive Is Full: Where the Space Actually Went
Storage Sense freed a few gigabytes and the drive is still full. Here is what is holding the rest, and which of it Windows will hand back on its own.
Free Up Space
Practical ways to reclaim storage on a Mac, PC or phone before you go buy more of it.
What "System Data" on a Mac Actually Is
macOS reports a large opaque "System Data" category and offers no way to open it. Here is what is inside, and which parts are safe to clear.
