Erase my iMac 10.6.8 without startup disc
I want to wipe all the information from my iMac 10.6.8 but the disc drive doesn't work. How can i restore it? Should i get an external dvd drive to restore it to factory settings or is there another way. I'm going to sell the iMac
imac G5 (2007), Mac OS X (10.6.3)