Any ideas why this happens?

Aloha all, just a quick question for those more experienced than I. What causes files folders etc. to become corrupt enough to need fixing. I run Disk Warrior as a monthly maintaince, habit from OS9 days. Almost every time it finds misnamed or files that need repair. I did a little test last week not upgrading, downloading re-installing anything, just normal usage of Mail, Safari, Aperture, iPhoto, Photoshop, nothing unusual. Yesterday I ran Disk Warrior and there were things out of whack again. Any thoughts as to what causes this? Just curious. Mahalo in advance for any info, tips, etc. JB

Hard to tell, but this is what I'd do, if I were you. Repair the HD with Disk Warrior. Once that's finished, boot with your install disk, enter your language, and, when the menu bar pops up, select Utilities-> Disk Utility and repair the disk and permissions. Next, get a bootable, external FireWire HD and clone/backup your HD w/Carbon Copy Cloner, SuperDuper!, etc. Boot from the clone, ensure everything looks and feels like the original, launch Disk Utility, select the original HD, click on the erase tab, click on the Options button and select zero all data, select Mac OS Extended format, and erase the HD. Reinstall the clone back to the HD. Boot with Disk Warrior and see what it says. If everything checks out, that should fix things.

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