G guitarmankarl67 macrumors newbie Original poster Jan 1, 2011 #1 Keep getting "System extension was not installed properly" message at start up after attempting to instal upgrade osx (snow leopard 10.6) right now I have osx 10.5. How do I repair it. Can I use sl 10.6 on a 2006 imac?
Keep getting "System extension was not installed properly" message at start up after attempting to instal upgrade osx (snow leopard 10.6) right now I have osx 10.5. How do I repair it. Can I use sl 10.6 on a 2006 imac?