A Boot Camp partition takes its space whether you use Windows or not
The partition is reserved in full from the day it is created. How to check what is there and remove it safely with Boot Camp Assistant.
830 guides
Mac storage, explained.
What fills your disk, where it hides, and what is safe to remove. Every guide gives you a way to check it on your own Mac.
How to find the largest files on a Mac, three ways
Finder, Terminal and a disk map each find large files differently. The exact steps for all three, and which to use when.
Every Terminal command worth knowing for disk space, in one place
Measuring, finding, clearing and reclaiming, with what each command does and what it costs. A reference rather than a tutorial.
System Data, purgeable, container, snapshot: what the words actually mean
The vocabulary macOS uses for storage, defined plainly, with what each term means for the space on your disk.
Which disk format to use, and what each one does to your free space
APFS, Mac OS Extended, exFAT and FAT32 behave differently on space, compatibility and reliability. How to choose for each kind of drive.
Finder says 4.3 GB and du says 4.0 GB. Both are right
Base 10 against base 2, apparent size against blocks, and clones. Why every tool reports a different number for the same folder.
Duplicating a 10 GB file on a Mac can cost nothing, and that is correct
APFS clones share data between copies until one changes. What that means for backups, duplicates and the numbers your tools report.
Pearcleaner is free, open source and currently on hold. What that means
An honest look at the open source Mac uninstaller: what it does well, its licence, and the maintenance status you should know about.
Are Mac cleaner apps safe, and which claims should worry you
Most are ordinary software doing an ordinary job. The specific claims that indicate a bad one, and the questions to ask before installing any.
CleanMyMac against MacKeeper, with both prices checked
Two subscription suites aimed at the same person. What each includes, what they cost, and the free alternatives for each part.
Your Time Machine drive is full, and that is how it is meant to work
Time Machine fills the destination on purpose and thins old backups itself. When to intervene, how to delete backups properly, and when to start fresh.
iCloud storage full and Mac storage full are different problems
The same message can mean two unrelated things. How to tell which one you have, and why fixing one does nothing for the other.