Sort of a stupid question, but how do I even get to where I can click on library/preferences...? I don't know what happened to my computer between now and a few days ago... I can't open Aperture 3 and now I'm panicking because I have literally, 1000's of pictures in there that aren't backed up yet!
I keep getting the message that it needs to restore windows and nothing I do will allow me to access Aperture 3!
Quit Aperture, if it is running/ hanging.
Remove the file com.apple.Aperture.plist from the folder
Your home folder > Library > Preferences
The User Library is hidden by default. You can reveal it from the Finder's "GO" menu:
Finder > Go, then hold down the options ⌥ key, until the Library appears in the drop-down menu, select it and open the Library folder. Then go to the "Preferences" sub folder and remove the file
your Home Folder/Library/Preferences/com.apple.Aperture.plist.
After removing the user preferences file, you will have to reset the Preferences, you selected in Aperture's preferences panel.
Are you sure that my pictures won't disappear if I delete Aperture 3 and reinstall it, then update it? I am so nervous about doing that. I CAN'T lose these pictures!!!
Your pictures are in your Aperture Library - the library will not be modified by the software installion. That does only affect the Aperture application.
But I strongly suggest you make a backup of the Aperture library, if you do not have one already. The Aperture 3.4 upgrade is a major upgrade, that will modify and upgrade your Aperture library. Afterwards it will be impossible to open the library in the previous version of Aperture.