We've all been there: you're merrily working on your Mac when you try to save a file and a window pops up to proclaim, "Your startup disk is almost full - you need to make more space available on ...

According to an Apple support article, Snow Leopard (Mac OS X 10.6) includes a new repair feature: the Mac may automatically attempt to diagnose and repair disk problems at startup.

How to repair your boot disk/startup disk with Disk Utility You can run First Aid on your startup drive following the steps above, but if Disk Utility finds any errors it won’t attempt to fix them.

Apple's Target Disk Mode is useful for troubleshooting, but it does bypass the file security offered in OS X, which may be a concern for some people. Here are a couple of ways to better secure ...

The security modes on ‌Apple Silicon‌ powered Macs In addition, Startup Disk is a new feature that enables user to select different security modes for startup volumes.

James Duff reports routinely inaccurate reporting of OS version numbers through Mac OS 9's Startup Disk control panel: "In a nutshell, my Startup Disk control panel reports the wrong system ...