How To: Fix Permissions When "Everyone" Is Set To "No Access" On HD

I was messing around with the Permissions of the Macintosh HD. I set the "Everyone" option to "No Access," by right clicking on the Hard Drive and choosing "Get Info." Of course, when I reset the computer it would not boot up. I read numerous posts on this Discussions website, only to find solutions in which you have to enter suspicious commands in the Terminal. This made me uneasy of course, as I had no idea what those commands would do to my machine.
I tried Repairing Permissions, which did not fix the issue. Time Machine backups were hopeless.
I finally found a solution to this issue without having to enter suspicious commands into the Terminal:
Insert the original Snow Leopard install disc that came with the Mac. Power the computer off, then back on. Before you turn it back on, hold down the "c" button on your keyboard. It will take a minute or two, so keep holding it down until the "Languages" screen appears. Now, all that you have to do is follow the on screen prompts to reinstall the OS. *This did not erase any of my data.* The reinstallation took about 45 min, and all was well after that.
I decided to post this as I did not find a solution this simple anywhere during my search for a fix. Sorry if I may have posted this in the wrong forum. I hope this helps anyone experiencing the same issue.

Niel's guide is not some random post, it is in User Tips, which means Apple employees have looked at it. Personally, I would trust anything Niel says more than I would anything an actual Apple employee said anyway. Indeed, I would trust Niel's advice more than advice I would see anywhere else at all!
Francine
Francine
Schwieder

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