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The boot drive's format and partition structure can be checked both in the OS X graphical interface and in the Terminal.
Running low on disk space can greatly slow down your computer. Here are several ways to look this up on your system.
If you cannot seem to load the OS X Recovery HD partition to use various diagnostics and repair tools, the fix may be quick, but could also require a longer reinstallation.
If partitioning a drive with Disk Utility gives you unmount or resource busy errors, there may be workarounds you can use.
If you have a specific volume on your Mac that you would like to keep from being edited when attached, here's how to protect it.
Readers ask about the OS X quarantine system, hot-corner triggers, and file locks in iWork.
While not the expected behavior, this bug is technically not a breach in security.
While encrypting and decrypting a volume can be done on the fly, the option for changing its password is a bit hidden.
If you want to share a drive but keep some files on it encrypted, you can easily do so with a couple of approaches in OS X.
If you are starting to experiment with the OS X Terminal, you'll want to know what commands are available. Here are some ways to explore your options.