Can I repair a corrupt disk through an OS Upgrade?
I have a 2009 Macbook Pro with Snow Leopard. It has been booting up and running slower recently and Chrome and Skype (when I start video chat) randomly crash now. I tried verifying the disk through Disk Utility. It said that the disk needs to be repaired and to start up the laptop with another disc and then use Disk Utility to repair the disk. I can't find my installation disc. If I just upgraded to Mountain Lion by downloading it from the App Store would that still fix it?