It's time to remove the partition you created for the public beta of OS X El Capitan.
Want to test Windows 10 on your PC? Create a hard drive partition for a worry-free install.
You shouldn't be using the OS X Yosemite Beta as your primary operating system, so Brian Tong shows you how to partition your Mac's hard drive.
Normally $36, this handy utility includes a "Windows to go" feature for creating a bootable Windows flash drive.
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.
Without an intact Recovery HD partition on your Mac, you will not be able to use Apple's FileVault disk encryption feature.
You can use a couple of modifier keys to avoid popup warnings when ejecting multiple partitions of a drive.
If your Recovery HD partition in OS X Lion is missing or not working, then it may be easy to get working with just a few steps.