Mac OS X

You may wonder what winmail.dat attachments are–attachments that Mail displays with a "question mark-over-text" icon.

Learn about the DVI to VGA adapter that comes with your Mac mini.

Some incompatible software is automatically disabled when you install OS X.

Learn how to re-enable the Apple-provided Java SE 6 Java SE 6 web plug-in and Web Start functionality.

You can use Migration Assistant in OS X Lion and Mountain Lion to transfer important information, such as user accounts, applications, network and computer settings, and files, from one Mac computer to another via a FireWire cable, ThunderBolt cable, or via an … Continue reading →

Learn how check the amount of installed RAM (physical memory) and the amount of memory being used.

After setting up an Apple Server Diagnostics NetBoot image for Mac mini Server (Mid 2011), NetBoot may not complete when you try to NetBoot a Mac mini Server by holding down the F1 key at startup.

"Journaling" is a feature that helps protect the file system against power outages or hardware component failures, reducing the need for repairs. Journaling was first introduced in Mac OS X Server 10.2.2, then to the non-server OS in Mac OS … Continue reading →

If you’re trying to install Mac OS X on a hard disk that you’ve connected to your Intel-based Mac, you may see this alert in Installer and be unable to select the disk for installation: "You cannot install Mac OS … Continue reading →

If Keychain First Aid finds an issue that it cannot repair, or if you do not know your keychain password, you may need to reset your keychain. (Resetting a keychain sets aside the original default keychain file and creates a … Continue reading →