So this saga began when my mother recently inherited my old Macbook Pro (circa 2011 model year). I got it set up with an account that had her name on it and everything, but the only thing that still had my name on it was the "home" folder. My mom is pretty tech savvy, but having my name on the "home" folder kept confusing her when she went to look for her documents and such. Anyway, I found and followed this tutorial (http://support.apple.com/en-us/HT201548. But it did not work. Then I started piddling around with the settings looking for another way to fix it on my own (this is, understandably, where our story takes a turn for the worse because I am no computer wizard). Then I encountered the window below in "users and groups" in system preferences. At first I ignored this warning, thinking, "Oh, it's a Mac. There's no way I could break a Mac. What's the worst that could happen?" (You can probably tell where this story is going by now). After typing in the boxes and switching the settings, I changed my mind and decided to heed the giant red lettered warning at the top of the window. However, the computer started rebooting and made this change anyway. I'm honestly not sure what happened at this point. I was sure I clicked "cancel" but I must have hit "ok" instead. Whether I did it or the computer decided I should do it, I clicked ok on the above window after changing everything from my name to my mother's name. And this brings us to the current situation. Now, I can't seem to access anything from her account...files, apps, anything. I'm getting all kinds of weird error messages like the following... Also this, though it hasn't popped up in the few minutes I've been sitting here typing this out. ETA: Here are the current "users." The one highlighted in blue with the fortune cookie icon is the administrator account I added for the purposes of the tutorial I linked to. The one with the pink flower icon is the original account that I was trying to rectify. Don't know if this is helpful info or not, but it is part of this horrible domino effect. Any ideas?