I have an iMac with OS 10.5. It crashed one day while doing a software update. After that it often hung at the gray screen on start up. When it did go past the gray screen and let me log in, finder ...

There are many reasons to reinstall macOS. It can fix any one of several OS errors. Plus, it helps secure your Mac for sale if you need to wipe all of your data. There are a few different ways to do ...

This will boot without extensions. Without bypassng them, the OS starts to load from either the CD or from the HDD but stops before any extensions appear. I am trying to reformat and reinstall the OS ...

According to reports on Apple's Support Discussions forums, an upgraded graphics card could cause kernel panics when attempting to reinstall Mac OS X Leopard from the original, included restore disk.

Various problems fixed by reinstallation For the most part, it appears as of yet the 10.5.4 update does not introduce any widespread problems, though this has yet to be affirmed. Still, several users ...